3D printing in construction is rapidly transforming the building industry. Beyond rapid prototyping, it’s becoming a cornerstone for large-scale construction projects, promising to reshape urban landscapes and infrastructure.
From optimizing material usage to creating intricate architectural designs, the potential applications are vast and far-reaching. This technology offers a fundamental change, promising increased efficiency, reduced waste, and greater design freedom. By eliminating the constraints of traditional construction methods, 3D printing opens new possibilities for architects, engineers, and builders.
This report delves into the pioneering efforts of industry leaders like Thermwood Corporation and Nike, who are at the forefront of pushing the boundaries of 3D printing in construction.
By examining their innovations, we aim to uncover the trends and technologies that will shape the future of the built environment.
#1 Thermwood Corporation
Headquarters: Dale, Indiana, USA
Thermwood Corporation is a pioneer in additive manufacturing, specializing in optimizing 3D printing processes for complex parts.
Key Patents in 3D Printing in Construction
Method for 3D Printing Parts Using Additive Manufacturing Techniques (US20200147876A1)
A method for 3D printing parts using additive manufacturing techniques that optimizes the printing process for each section of the part. The method involves dividing the part into sections, slicing each section into layers, and then printing the sections in a specific order to fuse them together. This allows for more efficient use of printing parameters and enables the creation of complex parts with intersecting sections.
Method for 3D Printing Parts Using Additive Manufacturing Techniques (US10668664B1)
A method for 3D printing parts using additive manufacturing techniques that optimizes the printing process for each section of the part. The method involves dividing the CAD model of the part into sections, slicing each section into layers, and then printing the layers of each section interspersed with the layers of the other sections. This allows for more efficient use of the printing process and enables the sections to fuse together when printed.
Methods for Fabricating Components Using Additive Manufacturing Techniques (US20200247048A1)
Methods for fabricating components using additive manufacturing techniques like 3D printing. The methods involve dividing a CAD model of the part into sections, then slicing each section into layers. Each section has its own unique print parameters. The sections are printed in sequence to form the part. This allows for more efficient use of the printing process and enables more complex designs.
Optimizing Additive Manufacturing (3D Printing) of Complex Parts (US20240017489A1)
Optimizing additive manufacturing (3D printing) of complex parts by dividing the part into sections with customized printing parameters before slicing into layers. This allows tailoring printing conditions for different sections of the part instead of using constant parameters for each layer. The customized sections are then printed together to form the final part. This enables improved printing efficiency and quality for complex shapes with varying section properties.
Lower Cost Method for Fabricating Components Using Layering Techniques (US20230321899A1)
A lower cost method for fabricating components using layering techniques that allows using lower cost fill materials compared to 3D printing. The method involves removing material from sheets to create individual layer segments, placing them adjacent to form layers with hollow interiors, then attaching and removing excess material to create the final part with a continuous surface. The hollow interior allows using lower cost fill materials like wood fiber instead of carbon fiber. The layers are infused with a catalyzed thermoset polymer to strengthen the composite.
Layering Method to Facilitate Production of Polymer-Based Product (US11701818B2)
Layering method that facilitates the production of a polymer-based product having a relatively high quantity of low-cost fill material. The method includes removing material from a sheet to create a plurality of individual layer segments formed, placing at least two first layer segments adjacent to each other at the same height to form a first layer having a hollow interior, the at least two first layer segments defining a first portion of an exterior of a part, and placing at least one second layer segment above the at least two first layer segments to form a second layer having a hollow interior, the at least one second layer segment defining a second portion of the exterior of the part.
Method for Manufacturing Large Parts Using a Layering Process (US20220362989A1)
A method for manufacturing large parts using a layering process that involves cutting and assembling individual segments of material to form the part. The segments are cut from a sheet of material using a CNC router and assembled together to form layers of the part. The layers are then stacked on top of each other to create the final part. The process allows for the production of large parts with complex shapes and structures using relatively low-cost materials.
#2 NIKE, Inc.
Headquarters: Beaverton, Oregon, USA
NIKE, Inc. is a global leader in the design, development, manufacturing, and marketing of footwear, apparel, equipment, and accessories. The company is known for its innovative products and cutting-edge technologies, including advancements in 3D printing for athletic wear and equipment.
Key Patents in 3D Printing in Construction
3D Printing System for Complex Structures (US11214024B2)
A 3D printing system that enables the formation of complex structures with multiple materials. The system uses multiple nozzles with different apertures to extrude materials with different properties. The nozzles can be moved relative to each other to form structures with complex geometries and internal cavities.
Printing Three-Dimensional Structural Components onto Fabrics (US20200215746A1)
Printing three-dimensional structural components onto fabrics or articles of clothing using a single layer or multiple layers with varying thicknesses. The printing system can print a single layer with varying thicknesses or multiple layers to form a 3D structure. The layers can be printed directly onto the fabric or article of clothing. The layers can be printed with varying thicknesses to form a 3D structure.
Printing Three-Dimensional Structural Components onto Fabrics Using a 3D Printer (US11618206B2)
Printing three-dimensional structural components onto fabrics or articles of clothing using a 3D printer. The printer can print layers of UV-curable ink onto the fabric to form the 3D structure. The layers can be printed with varying thicknesses to create a smooth surface. The printer can also print multiple layers to create more complex shapes.
Printing 3D Structures on Fabric Using UV-Curable Inks (US20240190064A1)
Printing 3D structures on fabric using UV-curable inks that can vary thickness. The method involves instructing a printing device to print a single layer or multiple layers with predetermined thicknesses. The thickest layer is printed first, then thinner layers are printed on top. This allows smoothly sloping 3D surfaces to be printed. The thicknesses are correlated to spot color percentages, allowing precise control over layer heights.
#3 Velo3D, Inc.
Headquarters: Fremont, California, USA
Velo3D, Inc. is a technology company specializing in metal 3D printing solutions for mission-critical parts used in various industries, including aerospace, power generation, and oil and gas. The company is known for its innovative approach to metal additive manufacturing and advanced printing techniques.
Key Patents in 3D Printing in Construction
3D Printing Metal Objects with Improved Properties (US20240051062A1)
A method for 3D printing a metal object with improved properties and reduced defects. The method involves diffusion-based 3D printing where the metal powder is transformed into a preliminary state and then densified. The densification reduces porosity and defects. The process involves using an energy beam to transform the powder into a porous layer, followed by another beam to densify that layer, reducing porosity and defects compared to directly printing dense metal layers.
3D Printing Method Using Two Energy Beams (US10442003B2)
A 3D printing method that uses two energy beams to control the microstructure of the printed object. The first energy beam is used to transform the pre-transformed material into transformed material. The second energy beam is used to reduce the porosity of the transformed material. This allows for the formation of complex 3D structures with fine details and reduced defects.
Printing Complex 3D Objects with High Dimensional Accuracy (US20240083119A1)
A method for printing complex 3D objects with high dimensional accuracy, low surface roughness, and low porosity without using auxiliary supports. The method involves using energy sources to reshape overhang segments during 3D printing. This prevents warping during printing and improves final object quality.
3D Printing Method for Complex Geometries (US20220388065A1)
A 3D printing method that enables complex geometries with high dimensional accuracy, low surface roughness, and high density. The method involves forming an overhang segment on an edge of a hard material, then reshaping the overhang segment using energy beams to increase its radius of curvature. This allows for overhangs with complex geometries and high dimensional accuracy.
3D Printing Complex Objects (US10369629B2)
A 3D printing method that allows for the fabrication of complex 3D objects with fine microstructures and reduced porosity. The method involves using a first energy beam to transform pre-transformed material into transformed material, forming melt pools. Then, a second energy beam is used to reduce the porosity of the transformed material by further transforming it. The second energy beam has a different intensity and/or speed than the first, allowing for precise control of the microstructure and porosity of the 3D object.
#4 Hewlett-Packard Development Company, L.P.
Headquarters: Palo Alto, California, USA
Hewlett-Packard Development Company, L.P. (HP) is a multinational information technology company known for its wide range of hardware and software products. HP is a leader in the 3D printing industry, providing innovative solutions for various applications, including prototyping and manufacturing.
Key Patents in 3D Printing in Construction
3D Printing Objects with Hidden Internal Structures (US20230356457A1)
A technique for 3D printing objects with hidden internal structures that can be revealed by selectively removing parts of the exterior. The technique involves creating 3D printed objects with an outer layer that has voids and a raised structure, and an underlying layer with a separate raised structure. Removing part of the outer layer exposes the underlying structure.
3D Printing with Channels and Support Elements (US20220024116A1)
A method for 3D printing with channels and support elements to improve structural integrity. The 3D printer has a first material deposition apparatus that forms layers of a first material. Channels are formed in some of the layers, and a second material is inserted into the channels to form supporting elements.
Reducing Material for Setters in 3D Printing (US11364543B2)
A method for reducing the amount of material needed for setters used in 3D printing to support parts during sintering. The setters are formed using a combination of digital and analog components, with the digital component printed digitally with the part and the analog component pre-made and placed under the digital component.
3D Printed Molds with Controlled Porosity (US20220032508A1)
A method for creating 3D printed molds with controlled porosity for use in manufacturing parts. The molds are formed using additive manufacturing techniques like 3D printing, and the porosity is controlled by varying the amount of fusing agent applied to each layer.
Generating Setters for 3D Components (US20210331248A1)
A method for generating setters for 3D printed components that reduces the amount of material needed for the setters. The method involves determining a support structure for a 3D component based on its geometry, and then selecting and printing a combination of digital and analog setters to support the component during sintering. The digital setter is printed digitally with the component, while the analog setter is pre-formed and placed in the correct location.
Additively Manufacturing Electronic Devices (US11911825B2)
A method for additively manufacturing electronic devices by fusing electronic components into 3D objects during the printing process instead of separately connecting them afterward. The method involves inserting the components into the printed object as it’s being built, then fusing them along with the layers using the printing heat. This eliminates the need for separate component attachment steps and results in a robust physical and electrical connection. It leverages the fusion capability of processes like multi-jet fusion to simultaneously print and join components.
#5 SIGNIFY HOLDING B.V.
Headquarters: Eindhoven, Netherlands
SIGNIFY HOLDING B.V., formerly known as Philips Lighting, is a global leader in lighting products, systems, and services. The company is known for its innovative 3D printing techniques used in the creation of lighting products and structures.
Key Patents in 3D Printing in Construction
3D Printing Method for Structures with Overhangs (US20220032535A1)
A 3D printing method that allows creating structures with overhangs and undercuts that are not possible with conventional FDM printing. The method involves printing a first layer with a non-zero height over the substrate, then printing additional layers horizontally in air without support.
3D Printing Method for Transparent or Translucent Items (US20230158733A1)
A 3D printing method that creates a stack of layers with openings between them to form a transparent or translucent item with a woven appearance. The openings are created by moving the printer head or stage in a z-direction to lift the layers slightly apart.
3D Printing Objects with Reinforcing Channels (US11628638B2)
A method for 3D printing objects with reinforcing channels filled with cured material to improve mechanical properties. The channels are formed in the 3D printed object during printing by filling them with a curable material, which provides a reinforcing structure that can improve the strength and stiffness of the object.
3D Printing Method for Items with Well-Defined Edges (US11828438B2)
A 3D printing method to create 3D printed items with openings that have well-defined edges. The method involves using oppositely-arranged turns in the 3D printing path to interrupt layers and form the opening edge. This allows thinner walls without thickening around the opening.
#6 Impossible Objects, Inc.
Headquarters: Northbrook, Illinois, USA
Impossible Objects, Inc. is a company that focuses on revolutionizing 3D printing by using composite-based additive manufacturing technology. Their innovative approach enables faster, stronger, and more versatile manufacturing of high-performance composite parts.
Key Patents in 3D Printing in Construction
3D Printing Using Conventional Printing Presses (US11040485B2)
A method for 3D printing using conventional printing presses to make objects layer by layer. The printing presses are modified to print layers of substrate material that are then fused together to form the 3D object. This allows for fast and cost-effective 3D printing without the need for expensive tooling.
3D Printing Method Using Conventional Printing Technology (US20190202164A1)
A 3D printing method using conventional printing technology to make objects layer by layer. The process involves printing substrate sheets with inkjet printers, then powdering and bonding the sheets together to form the 3D object. The printing sheets can be made using conventional printing methods like lithography, flexography, or gravure. The sheets are then stacked, cut, and folded to form the 3D object.
3D Printing Technique Using Inkjet Printing (US20230313352A1)
A 3D printing technique using inkjet printing to selectively deposit metal powders for 3D printing of metal objects. The technique involves printing a binding fluid onto a substrate to create a layer shape, then flooding that area with metal powder. Excess powder is removed and the selectively deposited powder is fused together by melting in a reducing, vacuum, or inert atmosphere. This allows 3D printing of metal objects using inkjet printing and selective powder deposition instead of traditional melting and extrusion methods.
3D Printing with Metal Powders (US20190084046A1)
A technique that involves printing liquid adhesive onto a substrate layer, then flooding the layer with metal powder. An inkjet printer selectively deposits liquid adhesive onto the substrate layer. We then selectively deposit powder onto the adhesive. Stacking and compressing the substrate layers fuse them together. Finally, we remove the excess substrate to reveal the 3D printed metal object.
Selective Liquid Deposition for Metal Objects (US20220072611A1)
A technique that involves selectively depositing liquid onto a substrate layer and then fusing the layers together to form the object. The liquid is a bonding agent that adheres to the substrate and the metal powder. The liquid is selectively deposited onto the substrate layer using an inkjet printer. The substrate layers are then compressed and heated to fuse the layers together.
#7 General Electric Company
Headquarters: Boston, Massachusetts, USA
General Electric Company (GE) is a multinational conglomerate with a diverse portfolio, including aviation, healthcare, power, renewable energy, and additive manufacturing. GE’s advancements in 3D printing are integral to the development of complex components and systems.
Key Patents in 3D Printing in Construction
Manufacturing Complex Composite Materials (US20210031404A1)
A method for manufacturing complex composite materials with intricate internal shapes by 3D printing disposable molds filled with ceramic slurry. The process involves 3D printing a mold with an internal cavity matching the desired internal shape. We inject ceramic slurry into the mold to fill the external shape. Curing the mold forms a hollow ceramic body. Subsequently, we insert another material, such as ceramic or metal, into the hollow to complete the composite. After removing the mold, we sinter the composite.
Additive Manufacturing with Lattice Support Structures (US20200254519A1)
A method for additive manufacturing of components with lattice support structures to improve fabrication and post-processing. The lattice structure provides a thermally conductive pathway for heat dissipation and mechanical support. 3D imaging software generates the lattice structure based on the component geometry. Additive manufacturing then produces this lattice structure alongside the component.
Additive Manufacturing to Improve Stability and Reduce Warping (US11440097B2)
A method for additive manufacturing of components with lattice support structures to improve stability and reduce warping. The lattice structure provides a thermally conductive pathway to dissipate heat and resist residual stresses.3D imaging software generates the lattice structure based on the component geometry. The lattice structure then undergoes additive manufacturing alongside the component.
#8 VOXELJET AG
Headquarters: Friedberg, Germany
VOXELJET AG specializes in high-speed, large-format 3D printers and on-demand parts services. The company serves industries like automotive, aerospace, film, and entertainment by providing precise and scalable additive manufacturing solutions.
Key Patents in 3D Printing in Construction
3D Printing Method for Easy Removal of Printed Objects (US10960655B2)
A 3D printing method that allows easy and safe removal of printed objects from the loose powder bed without damaging them. The printing process forms an auxiliary structure alongside the component, extending beyond its dimensions. This structure facilitates gripping and removal of the component from the powder bed. Designers can configure this structure as a frame, lattice, or other shape to securely hold the component in place.
3D Printing Method Using a Slip Containing Sinterable Material (US20220024068A1)
A 3D printing method that uses a slip containing a sinterable material to build a molded part layer by layer. The slip is applied to a build plane and selectively solidified using energy-absorbing material. This allows for precise and accurate 3D printing of dense and complex parts.
#9 RapidFlight Holdings, LLC
Headquarters: Manassas, Virginia, USA
RapidFlight Holdings, LLC focuses on the rapid production of aerospace and defense components using advanced manufacturing techniques, including large-scale 3D printing. Their innovations enable efficient and flexible production of complex structures.
Key Patents in 3D Printing in Construction
Additive Manufacturing of Large-Scale 3D Printed Structures (US11813790B2)
A method for additive manufacturing of large-scale 3D printed structures with improved efficiency and ability to make complex joint structures like overhangs and bridges. The method involves a multi-step process for printing the top-level structure that avoids the need for support structures or infill. It allows making overhangs and bridges without deformation, sagging, or breaking issues.
The process involves:
1. Printing a temporary base structure with a smooth surface for the top level to adhere to.
2. Printing the top-level structure directly onto the temporary base.
3. Removal of the temporary base after top level printing leaves a clean surface free from support or infill artifacts.. This enables high-efficiency printing of large-scale overhangs and bridges without the weight, cost, and removal issues of traditional support structures.
Large-Scale Additive Manufacturing with Overhangs (US11584065B2)
A method for large-scale additive manufacturing of structures with overhangs that are strong enough to support their own weight. The method involves printing a first layer structure with a tilted sidewall, then adding a support structure adjacent to the first layer. Removal of the support structure before printing additional layers prevents overhang deformation or failure.
#10 DIVERGENT TECHNOLOGIES, INC.
Headquarters: Torrance, California, USA
DIVERGENT TECHNOLOGIES, INC. focuses on transforming the auto industry through advanced manufacturing technologies, including 3D printing. Their innovative approach aims to reduce the environmental impact and costs associated with vehicle manufacturing.
Key Patents in 3D Printing in Construction
3D Printing Technique Using Spray Forming (US20190354083A1)
A 3D printing technique that uses spray forming to additively manufacture parts with improved accuracy, resolution, and fatigue life compared to traditional 3D printing methods. The technique involves integrating a spray forming mechanism into a 3D printer that has a flexible, computer-controlled nozzle with six degrees of freedom.
This allows spray forming at any angle, including upwards, without gravity issues. It enables forming parts layer by layer using spray droplets instead of extruding filament. The technique can also use patterns to increase spray forming resolution.
3D Printing Method Using Spray Forming to Improve Part Quality (US10691104B2)
A 3D printing method using spray forming to improve accuracy, resolution, and fatigue life of printed parts compared to conventional layer-by-layer 3D printing. The method involves integrating a flexible spray forming nozzle with six degrees of freedom into a 3D printer. This allows spray forming at any angle, including upwards, without gravity issues.
It also enables finishing of existing parts and whole part construction using spray forming. The spray forming technique improves resolution compared to layer-by-layer printing and can use materials like metals or plastics. The flexible nozzle enables smoother angled surfaces without stair-stepping artifacts. Spray forming also increases fatigue strength of parts compared to layer-by-layer printing.
#11 STRATASYS LTD.
Headquarters: Eden Prairie, Minnesota, USA
STRATASYS LTD. is a leading manufacturer of 3D printers and 3D production systems for office-based rapid prototyping and direct digital manufacturing solutions. The company’s products are used in various industries, including aerospace, automotive, healthcare, and consumer products.
Key Patents in 3D Printing in Construction
3D Printing Method to Improve Mechanical Properties (US11020896B2)
A 3D printing method that improves the mechanical properties of printed objects by preventing direct contact between the support and modeling materials. The method involves generating 3D digital data with horizontal slices that separate the body and support regions. The digital data is then manipulated to create shifted slices where the body and support regions are printed in separate scans. This prevents direct contact between the support and modeling materials, resulting in smoother surfaces and improved mechanical properties.
Compositions for Use in 3D Printing (US20190322031A1)
Compositions with high viscosity at room temperature and lower viscosity at higher temperatures function as support and release materials in 3D printing. The compositions contain reactive components, photo-initiators, surface-active agents, and stabilizers. The reactive components are acrylics, vinyl ethers, epoxies, or combinations thereof. The compositions have a high viscosity at room temperature for support but a lower viscosity at higher temperatures for release.
3D Printing with Support Construction (US11752689B2)
A support construction supports the 3D object during printing, minimizing mixed interface formation between the body and support materials. The printing includes selecting a material to deposit into a first layer, a second material to deposit into a second layer, and a supply system for supplying the body material and support material to the printing unit.
#12 NORTHROP GRUMMAN SYSTEMS CORPORATION
Headquarters: Falls Church, Virginia, USA
NORTHROP GRUMMAN SYSTEMS CORPORATION is a leading global security company providing innovative systems, products, and solutions in autonomous systems, cyber, C4ISR, space, strike, and logistics and modernization to customers worldwide.
Key Patents in 3D Printing in Construction
3D Printing with Rotating End-Effector (US11413806B2)
A 3D printing method that uses a rotating end-effector to deposit fibers and polymers in a non-sequential manner to build composite structures with high performance properties. The end-effector has a continuous fiber extruder module that heats and extrudes the fibers and polymers. The module is rotatable relative to the rest of the end-effector to control the fiber orientation. The part is built on a rotating table to maintain thermal stability.
3D Printing Composite Structures with Continuous Fiber Extruder (US20200324474A1)
A continuous fiber extruder module, independently rotatable from the end-effector, enables the 3D printing of high-performance composite structures. The module has a filament guide, a nozzle, and a cutter that shears the filament. The module is rotated to control the orientation of the nozzle relative to the part being printed. This allows for precise control of the fiber orientation and directionality in the part.
#13 X Development LLC
Headquarters: California, USA
X Development LLC is a subsidiary of Alphabet Inc., focusing on ambitious projects and breakthrough technologies to solve significant global problems.
Key Patents in 3D Printing in Construction
3D Printing Molding Sheets (US20200114589A1)
3D printing a sheet of molding material with structural features that are different from the rest of the sheet. The features print in regions of the sheet that will deform when the sheet is formed using a mold. The features can have structural characteristics that preempt the expected deformation of the sheet within those regions. The sheet molds to form a product.
Hybrid Additive Manufacturing (US11292212B2)
A hybrid additive manufacturing process that uses 3D printing to add structural features to a sheet of molding material before vacuum forming it into a product. Engineers design the 3D printed features to preemptively counter the expected deformation of the sheet during molding. The features can have different structural characteristics than the rest of the sheet, such as increased thickness or hardness. This allows the sheet to be molded without the need for additional adhesives or mechanical fasteners.
#14 ZRapid Technologies Co., Ltd.
Headquarters: Jiangsu, China
ZRapid Technologies Co., Ltd. is a leading manufacturer of industrial 3D printers, specializing in high-performance materials like ceramics and resins.
Key Patents in 3D Printing in Construction
Printing High-Viscosity Materials (US20210331379A1)
A 3D printing method for high-viscosity materials like ceramics and resins that avoids damaging the surface of the printed component. The method involves designing a conformal gap between the component and the support that maintains the original properties of the high-viscosity material. The gap is not irradiated by the laser during printing. After printing, the support and uncured material are removed, leaving the component with a clean surface.
Conformal Gap for 3D Printing (US11554540B2)
A method for 3D printing high-viscosity materials like ceramics and resins that involves designing a conformal gap between the component and the support, printing the component and support together, and then removing the support. The gap prevents direct contact between the component and the support, allowing the support to be easily removed without damaging the component.
#15 Robert Bosch GmbH
Headquarters: Gerlingen, Germany
Robert Bosch GmbH is a multinational engineering and technology company known for its innovative products in the areas of mobility, industrial technology, consumer goods, and energy and building technology.
Key Patents in 3D Printing in Construction
Electrophotographic 3D Component Production (US11275333B2)
Producing complex 3D components using electrophotography. The method involves applying a support structure to a bearer using electrophotography, then applying a component material into the support structure using another electrophotography step. The support structure forms the basic shape of the component, while the component material fills in the details. The method allows producing complex shapes with recesses and undercuts using standard electrophotography equipment.
Complex 3D Components via Electrophotography (US20200166879A1)
A method for producing complex 3D components using electrophotography. The method involves applying a support structure to a bearer using electrophotography, then applying a component material to the support structure using electrophotography. The support structure is removed after the component material is applied. This allows for the production of complex 3D components with features like recesses and undercuts.
#16 RESTOR3D, INC.
Headquarters: Durham, North Carolina, USA
RESTOR3D, INC. is a medical technology company that specializes in designing and manufacturing personalized surgical implants using advanced 3D printing technologies.
Key Patents in 3D Printing in Construction
Radiopaque Surgical Devices (US10889053B1)
We produce custom-fit, radiopaque surgical devices quickly and cost-effectively. A photo-curable polymer, doped with imaging contrast agents, forms the basis of these devices. 3D printing shapes the doped polymer into the desired configuration, followed by curing to create a radiopaque device with sufficient strength and toughness for surgical application.
Custom Medical Devices (US10850442B1)
3D printing custom medical devices like airway stents using Fused Deposition Modeling (FDM) and polycarbonate urethane (PCU) filament. The process involves heating the nozzle and bed to specific temperatures, drying the PCU filament, and then extruding it layer by layer to create the desired shape. The layers are built up to form the final device. This allows for customized stents with precise dimensions and shapes that can fit better and reduce migration compared to stock stents.
#17 GE AVIATION SYSTEMS LLC
Headquarters: Evendale, Ohio, USA
GE AVIATION SYSTEMS LLC is a leading provider of jet engines, components, and integrated systems for commercial, military, business, and general aviation aircraft.
Key Patents in 3D Printing in Construction
Hybrid Manufacturing System (US20190105816A1)
A hybrid manufacturing system that combines injection molding and additive manufacturing techniques to make complex parts with features that are difficult or impossible to achieve with either method alone. The system utilizes a mold with repositionable parts to facilitate a switch between injection molding and additive manufacturing. After filling the mold with injectable material, it opens to allow additive manufacturing operations on the part. This allows for the use of injection molding to form the basic shape of the part and then additive manufacturing to add features that are difficult or impossible to achieve with injection molding alone.
Hybrid Manufacturing for Complex Parts (US11097454B2)
A hybrid manufacturing system that combines injection molding and additive manufacturing techniques to make parts with complex features and structures. The system employs a mold with repositionable mold portions to switch between injection molding and additive manufacturing. The mold fills with injectable material before opening for additive manufacturing access, enabling the formation of parts with features challenging or impossible to achieve through injection molding alone.
#18 NTT RESEARCH, INC.
Headquarters: Sunnyvale, California, USA
NTT RESEARCH, INC. is a division of Nippon Telegraph and Telephone Corporation, focusing on groundbreaking research in quantum physics, medical and health informatics, and cryptography.
Key Patents in 3D Printing in Construction
Assembling Microscale Devices (US20240058142A1)
Assembling microscale and nanoscale devices into 3D structures with precise shape change and holding capabilities. The technique involves assembling single fiber-shaped units into 3D structures that can undergo significant changes in dimensionality. This allows creating complex 3D devices with transformable shapes. The fiber units are designed to assemble into the desired 3D shape with the necessary functionality.
#19 Siemens Industry Software Inc.
Headquarters: Plano, Texas, USA
Siemens Industry Software Inc. provides advanced software solutions for product lifecycle management and manufacturing operations.
Key Patents in 3D Printing in Construction
Designing Additive 3D Cores (US10955820B2)
Designing additive 3D cores for composite parts using CAD systems. The design engine determines the under-core ply and core footprint of the composite part and the additive 3D core to be inserted. It computes the bottom surface of the 3D core and accesses core design parameters like thickness and shape. The engine constructs an additive 3D core design in the CAD model based on the bottom surface and core shape parameters. The design is stored to support subsequent manufacture of the 3D core via additive manufacturing.
CAD-Designed Additive 3D Cores (US20200264584A1)
Designing additive 3D cores for composite parts using CAD systems. The system determines the under-core ply and core footprint of the composite part and uses that information to compute the bottom surface of the additive 3D core. It then constructs the 3D core design in the CAD model based on the bottom surface and core shape parameters.
#20 FLEX LTD
Headquarters: Austin, Texas, USA
FLEX LTD is a global leader in design, engineering, and manufacturing services for various industries, including automotive, healthcare, and consumer electronics.
Key Patents in 3D Printing in Construction
3D Printed Parts with Interlayer Materials (US20200180218A1)
Creating 3D printed parts with interlayer materials to customize properties. The parts are made by alternating layers of 3D printed material and interlayer materials. The interlayer materials provide properties like conductivity, rigidity, or strength that the 3D printed material lacks. The interlayer materials can be sheets, rolls, or loose. The parts can be made using any 3D printing method like FDM, SLA, SLS, etc.
#21 Henkel AG & Co. KGaA
Headquarters: Düsseldorf, Germany
Henkel AG & Co. KGaA is a global leader in adhesive technologies, beauty care, and laundry & home care products.
Key Patents in 3D Printing in Construction
Photocurable Composition for 3D Printing (US20220234292A1)
A method for performing additive manufacturing using a photocurable composition to form a three-dimensional part. The method involves providing a non-flowable photocurable composition in a reservoir, heating it to a temperature to make it flowable, and then exposing it to radiation to initiate polymerization. This allows the formation of a photoplastic material with improved properties compared to existing photopolymers.
#22 Element 7, LLC
Headquarters: California, USA
Element 7, LLC specializes in innovative additive manufacturing solutions, particularly for creating molds and other intricate parts.
Key Patents in 3D Printing in Construction
Additive Manufacturing for Molds (US11548232B2)
Fabricating parts using additive manufacturing to create molds for injection or pour molding. The process involves creating a hollow shell using additive material, filling it with a second material, and then removing the shell to reveal the desired part. This allows the benefits of additive manufacturing to be combined with the efficiency and cost-effectiveness of injection molding.
#23 Siemens Energy Global GmbH & Co. KG
Headquarters: Munich, Germany
Siemens Energy Global GmbH & Co. KG focuses on innovative energy solutions, including the production and service of power and gas turbines.
Key Patents in 3D Printing in Construction
Optimized 3D Printing Method (US20230052734A1)
A 3D printing method that optimizes the manufacturing time of components while maintaining quality. The method involves designing the component layers to have different manufacturing speeds. This allows for faster printing of some layers while maintaining the overall structural integrity of the component. The layers are designed to have different properties like surface roughness, mechanical stability, and thermal resistance.
#24 University of Massachusetts
Headquarters: Amherst, Massachusetts, USA
The University of Massachusetts is a renowned public research university known for its innovation and research in various fields, including 3D printing and materials science.
Key Patents in 3D Printing in Construction
Injection Printing with Shell Deposition (US20220219383A1)
Injection printing via shell deposition and cavity filling to improve part properties like strength and stiffness. The process involves printing a shell structure with cavities, then filling the cavities with material using the nozzle of a 3D printer. The shell structure provides interlocks between the injected material and the printed part. The cavities can be offset or have different widths to optimize the interlocks and part properties.
#25 MakerBot Industries, LLC
Headquarters: Brooklyn, New York, USA
MakerBot Industries, LLC is a pioneer in desktop 3D printing, offering a range of 3D printers and solutions for education, industry, and hobbyists.
Key Patents in 3D Printing in Construction
3D Printing with Multiple Materials (US10836090B2)
3D printing with multiple materials. The printer has an extruder that can switch between two feeds of different materials. The filament changer in the extruder can switch between the two feeds without interrupting the extrusion. This allows the printer to build objects with multiple materials.
#26 ENTEGRIS, INC.
Headquarters: Billerica, Massachusetts, USA
ENTEGRIS, INC. is a global leader in advanced materials science, providing products and solutions for the semiconductor and other high-tech industries.
Key Patents in 3D Printing in Construction
Multi-Layer Composites with Precision (US20220184703A1)
Additive manufacturing methods for forming multi-layer composites with precise thicknesses. The method involves forming multiple layers with different thicknesses to achieve a desired level of precision. Additive manufacturing techniques like powder bed or stereolithography form the layers. These layers are selected to create a multi-layer composite with a measured thickness falling within a predetermined tolerance relative to a target thickness. Layer thicknesses are chosen to control the composite’s thickness to the desired tolerance.
#27 SprintRay Inc.
Headquarters: Los Angeles, California, USA
SprintRay Inc. specializes in digital dentistry, offering innovative 3D printing solutions for dental professionals.
Key Patents in 3D Printing in Construction
Dental Appliances with Customizable Properties (US20230270528A1)
A method to produce dental appliances like retainers and aligners using additive manufacturing with customizable properties. The method involves 3D printing an initial version of the appliance using a 3D printer. Secondary additive manufacturing systems apply additional materials to modify the physical and mechanical properties of the initial printed appliance. This allows customization of properties like strength, elasticity, and transparency beyond what the initial printing material can provide.
#28 Evolve Additive Solutions, Inc.
Headquarters: Minnetonka, MN, USA
Evolve Additive Solutions, Inc. is focused on advanced additive manufacturing technologies that enhance the efficiency and capabilities of 3D printing processes.
Key Patents in 3D Printing in Construction
Reducing Support Material (US20230256669A1)
Printing a part in an additive manufacturing system to reduce the amount of support material used. The printing includes developing a layer of a part material through electrostratography, developing a layer of a support material through electrostratography, and stacking and bonding the layers of support material and the layers of part material to form a three-dimensional part.
#29 Candice Folmar
Candice Folmar is an independent inventor specializing in innovative 3D printing methods for replicating discontinued products.
Key Patents in 3D Printing in Construction
Replicating Ceramic Tiles (US20230315046A1)
Method to efficiently and accurately replicate discontinued ceramic tiles using 3D printing and scanning. The process involves scanning the original tile, 3D printing a replacement tile based on the scan, customizing the printed tile to match the original tile’s dimensions and pattern, and applying images to the printed tile. This allows recreating discontinued ceramic tiles that can no longer be manufactured.
#30 Kumovis GmbH
Headquarters: Munich, Germany
Kumovis GmbH now known as EXT 220 MED, is a company specializing in advanced 3D printing solutions for medical devices and implants with a focus on improving mechanical properties.
Key Patents in 3D Printing in Construction
Porous Semi-Finished Medical Parts (US20240122715A1)
3D printing produces semi-finished parts with improved mechanical properties for medical devices like implants and instruments, enabling easy manufacturing. The semi-finished part has a porous structure with interconnected pores. The pores can have circular shapes, enhancing properties like osseointegration and mechanical strength. The porous structure can also contain a drug like an antibiotic.
#31 CANON PRODUCTION PRINTING HOLDING B.V.
Headquarters: Venlo, Netherlands
CANON PRODUCTION PRINTING HOLDING B.V. is part of Canon Inc., focusing on high-resolution production printing technologies.
Key Patents in 3D Printing in Construction
High-Resolution 3D Printing (US10967567B2)
3D printing objects with high resolution details on a base body formed with a lower resolution.A 3D printer forms the base body at a lower resolution than the object. Object details print on a flexible sheet, deforming to match the base body. Vacuum forming the sheet onto the base body completes the object.
#32 Océ Holding B.V.
Headquarters: Venlo, Netherlands
Océ Holding B.V., a subsidiary of Canon Inc., specializes in innovative printing solutions and technologies.
Key Patents in 3D Printing in Construction
Complex Shape Printing (US20190016044A1)
3D printing objects with complex shapes by splitting the model into a base part and a cover part, forming the base part using conventional techniques, printing the cover part with a 3D printer, and vacuum forming the cover part onto the base part. This allows 3D printing to be used for objects with high elevations and complex shapes while maintaining the accuracy and precision of conventional forming techniques.
#33 BEIJING UNIVERSITY OF CHEMICAL TECHNOLOGY
Headquarters: Beijing, China
BEIJING UNIVERSITY OF CHEMICAL TECHNOLOGY is a leading institution specializing in chemical engineering and advanced manufacturing technologies.
Key Patents in 3D Printing in Construction
Strong 3D Printed Parts (US20200198233A1)
3D printing technology-based processing apparatus and method that enables the creation of strong 3D printed parts. The apparatus has a micro injection molding machine, a fused deposition modeling extruder, and a molding unit. The micro injection molding machine injects melted material into a mold. The fused deposition modeling extruder extrudes melted material that fuses and solidifies. The molding unit has a prototyping platform that moves in a vertical direction.The platform’s taper hole structure enables vertical stacking of 3D printed parts. Fusing these stacked parts together creates a strong component.
#34 Desktop Metal, Inc.
Headquarters: Burlington, Massachusetts, USA
Desktop Metal, Inc. is known for its innovative metal 3D printing solutions designed to accelerate manufacturing processes and product development.
Key Patents in 3D Printing in Construction
Support Structure Fabrication (US11407180B2)
A support structure, printable with the object, fabricates three-dimensional objects. This support structure, made from the same material as the object, incorporates mold layers surrounding the object. The mold layers contain structural additives that prevent the support structure from fusing to the object during sintering. This allows the support structure to be removed after the object is finished printing.
#35 MARKFORGED, INC.
Headquarters: Massachusetts, USA
Official Website
MARKFORGED, INC. specializes in 3D printing technologies for producing strong, functional parts with composite materials and metal.
Key Patents in 3D Printing in Construction
Composite Objects with Metal Shell (US20220168809A1)
3D printing composite objects with a metal shell and infill pattern filled with dry metal powder. Printing a shell with gaps or silos creates the infill pattern. Dry metal powder infiltrates these silos, filling the shell. Sintering the filled object forms a strong, stiff composite.
High Strength 3D Printed Parts (US20240140042A1)
3D printing technique for parts with high strength in all directions. The method involves rotating a partially printed part during the printing process to change fiber orientation, enabling reinforcement fibers to be printed perpendicular to the load direction on all sides. This is coordinated by a reorientation mechanism. The technique also involves separately printing part components with different fiber orientations and assembling them to customize strength in each direction, compensating for warping due to asymmetric reinforcement.
#36 Peri GmbH
Headquarters: Weißenhorn, Germany
Peri GmbH is a global leader in formwork and scaffolding systems, providing solutions for concrete construction.
Key Patents in 3D Printing in Construction
Reinforced Concrete Structures (US20210370546A1)
3D printing of reinforced concrete structures using a process that allows for high strength reinforcement without the need for complex and expensive formwork. Layers of concrete with embedded reinforcement elements print in this process, rigidly connecting to adjacent layers. Reinforcement elements print extending beyond the current layer, connecting to the next layer and enabling continuous reinforcement throughout the structure.
#37 Konica Minolta Laboratory U.S.A., Inc.
Headquarters: Ramsey, New Jersey, USA
Konica Minolta Laboratory U.S.A., Inc. focuses on advanced imaging technologies and 3D printing innovations.
Key Patents in 3D Printing in Construction
Auxetic and Non-Auxetic Structures (US10442132B1)
3D printing of objects with a combination of auxetic and non-auxetic structures to improve strength and rigidity while reducing weight. Alternating layers of auxetic and non-auxetic blocks compose the 3D printed object. The auxetic blocks have a disordered network or a Cosserat elastic structure. The non-auxetic blocks are solid. The combination provides improved tensile strength and rigidity compared to a regular 3D printed object of the same size and shape.
#38 Frampton E. Ellis
Frampton E. Ellis is an independent inventor focusing on 3D printing technologies for complex internal structures.
Key Patents in 3D Printing in Construction
Smartphone-Controlled Internal Sipes (US20200171767A1)
3D printing devices with internal sipes that can be controlled by a smartphone. The method involves excluding certain areas during 3D printing to form internal sipes in the device. Two opposing surfaces define the sipes, sliding against each other when the device loads. Different materials printed in different areas can form the sipes.
#39 ESSENTIUM, INC.
Headquarters: Austin, Texas, USA
ESSENTIUM, INC. is known for its high-speed industrial 3D printing technologies and advanced materials.
Key Patents in 3D Printing in Construction
Tooling with 3D Printed Scaffold (US20230211526A1)
Tooling formed from a 3D printed scaffold and forming tooling from material extrusion 3D printed scaffolds. The tooling includes a 3D printed scaffold, a casting material hardened within the scaffold, and a forming surface defined by the scaffold.
#40 INTERNATIONAL BUSINESS MACHINES CORPORATION
Headquarters: Armonk, New York, USA
INTERNATIONAL BUSINESS MACHINES CORPORATION (IBM) is a global leader in technology and consulting, known for its innovations in various fields including additive manufacturing.
Key Patents in 3D Printing in Construction
Hybrid Additive Manufacturing (US20240165884A1)
Hybrid additive manufacturing that combines 3D printing with casting to optimize time and cost for complex objects. It involves analyzing the digital 3D model to identify segments that can be cast instead of printed. The printer pauses, a secondary device places a cast at the segment location, then resumes printing to complete the object. This leverages the faster casting process for certain segments while using printing for others.
Optimal Manufacturing Process Selection (US20230185276A1)
A system and method for selecting the optimal manufacturing process for a product design. The system receives a product design and a set of manufacturing processes, analyzes the design using machine learning, and selects the best process based on factors such as material properties, manufacturing capabilities, and cost.
#41 The Regents of the University of Colorado
Headquarters: Boulder, Colorado, USA
The Regents of the University of Colorado is a public research university system known for its advancements in various fields including engineering and additive manufacturing.
Key Patents in 3D Printing in Construction
Voxel-Based Anatomical Structures (US20200316868A1)
3D printing of anatomical structures from medical imaging data using voxel-based techniques. This method converts medical images into a 3D model, enabling layer-by-layer printing with multiple materials. Dividing the image into voxels and assigning material properties to each creates the 3D model. Slicing the voxel-based model into layers feeds a 3D printer capable of multi-material printing, producing complex structures with material gradients.
#42 ORD Solutions Inc.
Headquarters: Canada
ORD Solutions Inc. specializes in advanced 3D printing technologies for creating full-color objects and multi-material parts.
Key Patents in 3D Printing in Construction
Full Color Object Printing (US20190270136A1)
3D printing a full color object using multiple materials. The system uses a selective deposition printhead that deposits layers of different materials. The layers are then fuse together using a sintering process. This allows for full color objects to print with different materials for each layer. The selective deposition enables precise placement of materials and reduces waste.
#43 GRID LOGIC INCORPORATED
Headquarters: Denver, Colorado, USA
GRID LOGIC INCORPORATED focuses on innovative additive manufacturing methods to overcome limitations of conventional processes.
Key Patents in 3D Printing in Construction
Complex Parts Manufacturing (US11135643B2)
A method of making complex parts using additive manufacturing that overcomes limitations of conventional powder bed processes. The method involves forming layers of a mould-forming material and a sacrificial material, removing the sacrificial material to leave a void, filling the void with a part-forming material, and removing the mould structure to free the part. Heating activates the binder in the mould-forming material, holding the granular material together. Subsequent heating melts the part-forming material, filling the void.
#44 Collins Engine Nozzles, Inc.
Headquarters: Los Angeles, California, USA
Collins Engine Nozzles, Inc. specializes in advanced engineering solutions for aerospace and industrial applications.
Key Patents in 3D Printing in Construction
Assembly Aid for Tubular Parts (US11440115B2)
An assembly aid for manufacturing that uses additive manufacturing to guide assembly of tubular parts. The aid deposits on the outer surface of a first member and can be used to prevent over-insertion or provide a keyway fit. The aid can be a ring of braze material or strips that fit into secondary orifices in the second member. The strips are offset to create an interference fit or act as a keyway. The strips can also include indicia to guide insertion or mark the origin of the part.
Assembly Aids for Tubular Members (US11998998B2)
Additive manufacturing of assembly aids to simplify and improve accuracy of joining tubular members like pipes. A 3D printer prints the aides onto one of the tubes using a pattern that guides and aligns the mating tube during insertion. This eliminates the need for secondary fixtures or processes to aid assembly. The aides are printed using an additive manufacturing process like directed energy deposition.
#45 National Taiwan University of Science and Technology
Headquarters: Taipei, Taiwan
National Taiwan University of Science and Technology is a prominent research institution specializing in science and technology, including advanced manufacturing processes.
Key Patents in 3D Printing in Construction
Composite Additive Structure (US20230117377A1)
A composite additive structure with a three-dimensional base structure and a filled structure, manufactured in a single process using additive manufacturing technology. A supportless design forms the three-dimensional base structure, encompassing a shell with an enclosed cavity. This cavity holds the filled structure, connecting to the shell and composed of various materials like liquid, gel, foam, or powder. Different filling strategies, including local, layer, or global methods, create the filled structure.
#46 PROTOLABS, INC.
Headquarters: Maple Plain, Minnesota, USA
PROTOLABS, INC. is a leading provider of rapid prototyping and on-demand production services using additive manufacturing and other technologies.
Key Patents in 3D Printing in Construction
Manufacturing with Temporary Fixating Material (US11567473B2)
Methods for manufacturing discrete objects from additively manufactured bodies using temporary fixating material to hold objects securely during subtractive manufacturing. We insert the body of material into a frame and add removable fixating material around it. This fixating material secures the body and objects during the process. After subtractive manufacturing, we remove the fixating material to reveal the finished objects.
#47 3M INNOVATIVE PROPERTIES COMPANY
Headquarters: St. Paul, Minnesota, USA
3M INNOVATIVE PROPERTIES COMPANY, a division of 3M, focuses on advanced technologies including additive manufacturing for innovative solutions in various industries.
Key Patents in 3D Printing in Construction
Support Structure Removal (US20210228316A1)
Additive manufacturing method for building objects with easily removable support structures. The method involves building the object and support structures in layers, with connections between the support structures and the object provided through common layers. This design facilitates the removal of support structures without damaging the object.
#48 LEGO A/S
Headquarters: Billund, Denmark
People globally recognize LEGO A/S for its high-quality toy building blocks and innovative manufacturing techniques.
Key Patents in 3D Printing in Construction
Improved Toy Building Elements (US20200368633A1)
Additive manufacturing of toy building elements with enhanced dimensional precision, surface roughness, and appearance compared to traditional methods. The method involves a specific additive manufacturing approach that allows better control over the printing process, resulting in smoother surfaces and fewer visible layer lines.
#49 Azure Printed Homes, Inc.
Headquarters: California, USA
Azure Printed Homes, Inc. specializes in 3D printing technologies for constructing residential homes and other structures.
Key Patents in 3D Printing in Construction
Monolithic Structure Printing (US20230313520A1)
Engineers 3D print structures like houses by depositing material to form monolithic sides, which they then rotate to the bottom after printing. This process eliminates the need for supports and internal columns, resulting in a single-piece exterior. Add the front and rear walls separately, printing them in continuous beads with interior channels. Then rotate the structure to rest on the printed bottom surface.
#50 Maxwell G. Ames
Maxwell G. Ames is an independent inventor specializing in innovative 3D printing methods for customized footwear.
Key Patents in 3D Printing in Construction
Customizable 3D Printed Shoes (US20230172314A1)
3D printed shoes with customizable components using additive manufacturing design tools. The method includes creating a 3D printed shoe last model, documenting shapes and pieces of the conceptual model shoe last, initializing design tools to create 3D printed shoe models, and merging and bonding these models. Engineers optimize the lattice structure within the shoe for strength, weight, and ventilation.
#51 Suzhou Fusion Tech Co., Ltd.
Headquarters: Suzhou, Jiangsu, China
Suzhou Fusion Tech Co., Ltd. focuses on advanced 3D printing technologies and solutions for various industrial applications.
Key Patents in 3D Printing in Construction
Removable Workpiece Supports (US20220126480A1)
3D printing method for workpiece supports that are easily removable without damaging the workpiece. The method involves printing a support with a special structure that allows easy disassembly. Engineers design the support with gaps between units, making it loose and removable without harming the workpiece.
#52 VALORBEC SOCIETE EN COMMANDITE
VALORBEC SOCIETE EN COMMANDITE specializes in advanced manufacturing techniques, including 4D printing and composite structures.
Key Patents in 3D Printing in Construction
4D Printing of Composite Structures (US20200023569A1)
4D printing of composite structures with curves using automated fiber placement systems. The method involves obtaining a composite layer arrangement specifying fiber orientation in each layer, depositing these layers on a flat surface, and activating the laminate to produce a curved structure. Activation methods include heating, cooling, or other stimuli that cause the layers to reconfigure into a curved shape.
#53 ON CLOUDS GMBH
Headquarters: Zurich, Switzerland
ON CLOUDS GMBH specializes in innovative 3D printing techniques for textiles and wearable products.
Key Patents in 3D Printing in Construction
Movable Fibers in Textile Fabrics (US20220203611A1)
3D printing textile fabrics with movable fibers at specific crossover points. The method involves creating a 3D model of the fabric, printing it layer by layer, and applying a separating layer material at crossover points to prevent bonding of fibers. We remove the separating layer post-printing to create movable fibers at those points.
#54 Xerox Corporation
Headquarters: Norwalk, Connecticut, USA
Xerox Corporation is known for its innovations in printing technologies, including advanced additive manufacturing systems.
Key Patents in 3D Printing in Construction
Interlocking Structures in 3D Printing (US11338523B2)
Additive manufacturing system that forms interlocking structures between object layers in the Z-direction to improve structural integrity. The system alternates formation of object layers to create interlocking swaths in adjacent layers using a multi-nozzle extruder. The extruder emits different materials from various nozzles, and the controller modifies instructions to form these interlocking structures.
#55 OPT Industries, Inc.
Headquarters: California, USA
OPT Industries, Inc. specializes in optimizing support structures for high-resolution 3D printing to handle complex geometries.
Key Patents in 3D Printing in Construction
Supported 3D-Printed Articles (US20240092032A1)
Producing supported 3D-printed articles with complex geometry by optimizing support structures. The method includes determining the concave hull of the article, identifying vertices needing support, and printing the article with pillars connecting these vertices to the support surface. This approach ensures adequate support without excessive material and facilitates self-intersecting geometries and efficient post-processing.
#56 CHROMATIC 3D MATERIALS INC.
Headquarters: USA
CHROMATIC 3D MATERIALS INC. is known for its advanced 3D printing materials and technologies.
Key Patents in 3D Printing in Construction
Thermosetting Material Depositing (US20220219380A1)
3D printing method involving the deposition of a thermosetting material on the exterior of a prefabricated article. This process creates a customized object with a strong bond between the thermosetting material and the exterior surface of the article, enabling its use as a customizable part in a 3D printed object.
#57 United Technologies Corporation
Headquarters: Farmington, Connecticut, USA
United Technologies Corporation, now part of Raytheon Technologies, specializes in aerospace and industrial technologies, including advanced manufacturing techniques.
Key Patents in 3D Printing in Construction
Metallic Structural Feature Addition (US20200247056A1)
Additively manufacturing a metallic structural feature onto a polymer part for aircraft components. The polymer part is first manufactured using additive techniques, followed by the addition of a near net shape metallic structure using a cold spray nozzle. Engineers then machine the metallic structure to finalize the part, creating lighter, reinforced components that can withstand stress and wear.
#58 Electronics for Imaging, Inc.
Headquarters: Fremont, California, USA
Electronics for Imaging, Inc. focuses on digital printing technologies and advanced manufacturing solutions.
Key Patents in 3D Printing in Construction
Unit Ink Tank with Complex Passageways (US20200139719A1)
3D printing a unitary ink tank with a complex network of passageways for routing ink. Powdered material forms the ink tank, which includes a network of passageways routing ink to the printheads. The interweaved passageways enable multiple inks to be provided to any combination of printheads without needing secondary sealing.
What’s Next?
The potential of 3D printing in construction is vast and brimming with possibilities. While we’ve explored some of the groundbreaking patents driving this revolution, the journey is far from over.
As research and development efforts intensify, we can anticipate even more sophisticated techniques, materials, and applications emerging. The intersection of 3D printing with artificial intelligence, robotics, and sustainable materials will likely redefine construction as we know it.
However, amidst the progress, a key challenge presents itself: the massive amount of data generated by 3D printing research. Sifting through countless patents, technical papers, and industry developments to identify groundbreaking innovations is time-consuming and inefficient.
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