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| Number | Title | Issue Date |
| 8017055 | Three-dimensional printer A three-dimensional printer uses inkjet-type printheads to rapidly prototype, or print, a three-dimensional model. A powder feeder includes a conveyor system and a metering system to deliver powder to a build area in measured quantities. The powder feeder also inclu... | 09/13/2011 |
| 7979152 | Apparatus and methods for handling materials in a 3-D printer A build chamber for use in a three-dimensional printer and adapted for receiving powder for producing three-dimensional objects. The build chamber includes a build surface for receiving the powder, with the build surface including a first plate defining holes and a ... | 07/12/2011 |
| 7971991 | Apparatus and methods for handling materials in a 3-D printer The present invention is directed towards methods and apparatus for handling powder in a 3D printer. The invention includes a means of transporting powder from multiple sources to a powder dispensing apparatus with minimal user intervention, thus reducing contaminat... | 07/05/2011 |
| 7968626 | Three dimensional printing material system and method using plasticizer-assisted sintering A materials system, kit, and methods are provided to enable the formation of articles by three dimensional printing. The kit includes (i) a substantially dry particulate material including an aqueous-insoluble thermoplastic particulate material, plaster, and a water... | 06/28/2011 |
| 7905951 | Three dimensional printing material system and method using peroxide cure A materials system and methods are provided to enable the formation of articles by Three Dimensional Printing. The materials system includes a transition metal catalyst that facilitates the reaction of an acrylate-containing binder with a particulate material. ... | 03/15/2011 |
| 7828022 | Apparatus and methods for handling materials in a 3-D printer The present invention is directed towards methods and apparatus for handling powder in a 3D printer. The invention includes a means of transporting powder from multiple sources to a powder dispensing apparatus with minimal user intervention, thus reducing contaminat... | 11/09/2010 |
| 7824001 | Apparatus and methods for servicing 3D printers The invention relates to apparatus and methods for producing three-dimensional objects and auxiliary systems used in conjunction with the aforementioned apparatus and methods. The apparatus and methods involve 3D printing and servicing of the equipment used in the a... | 11/02/2010 |
| 7795349 | Material systems and methods of three-dimensional printing The present invention is directed to three-dimensional printing material systems and method, and an article made therefrom. The method of the present invention includes building cross-sectional portions of a three-dimensional article, and assembling the individual c... | 09/14/2010 |
| 7569273 | Thermoplastic powder material system for appearance models from 3D printing systems A materials system and method is provided to enable the formation of articles by three-dimensional printing. The materials system includes thermoplastic particulate filler material that allows the accurate definition of articles that are strong without being brittle... | 08/04/2009 |
| 7550518 | Methods and compositions for three-dimensional printing of solid objects A three-dimensional printing materials system and method can produce both appearance models and small numbers of functional parts in an office environment. The method can include building cross-sectional portions of a three-dimensional article, and assembling the in... | 06/23/2009 |
| 7435368 | Three-dimensional printer A three-dimensional printer uses inkjet-type printheads to rapidly prototype, or print, a three-dimensional model. A powder feeder includes a conveyor system and a metering system to deliver powder to a build area in measured quantities. The powder feeder also inclu... | 10/14/2008 |
| 7387359 | Apparatus and methods for servicing 3D printers The invention relates to apparatus and methods for producing three-dimensional objects and auxiliary systems used in conjunction with the aforementioned apparatus and methods. The apparatus and methods involve 3D printing and servicing of the equipment used in the a... | 06/17/2008 |
| 7332537 | Three dimensional printing material system and method The present invention is directed to a 3DP™ material composition and method of use. The composition of the present invention includes an adhesive material, a fibrous component and a filler. Alternatively, the composition may include a particulate material having a... | 02/19/2008 |
| 7291002 | Apparatus and methods for 3D printing The invention relates to apparatus and methods for producing three-dimensional objects and auxiliary systems used in conjunction with the aforementioned apparatus and methods. The apparatus and methods involve continuously printing radially about a circular and/or r... | 11/06/2007 |
| 7087109 | Three dimensional printing material system and method The present invention is directed to a three-dimensional printing system and method, and an article made therefrom. The method of the present invention includes building cross-sectional portions of a three dimensional article, and assembling the individual cross-sec... | 08/08/2006 |
| 7037382 | Three-dimensional printer A three-dimensional printer uses inkjet-type printheads to rapidly prototype, or print, a three-dimensional model. A powder feeder includes a conveyor system and a metering system to deliver powder to a build area in measured quantities. The powder feeder also inclu... | 05/02/2006 |
| 6989115 | Method and apparatus for prototyping a three-dimensional object A three-dimensional printer includes multiple printheads for printing binder and/or colorant onto a bed of build material in a build chamber. The printheads can be mounted on a gantry that is designed for reciprocal displacement across a build chamber along a slow a... | 01/24/2006 |
| 6610429 | Three dimensional printing material system and method The present invention is directed to a 3DP™ material system ad method, and an article made therefrom. The method of the present invention includes building cross-sectional portions of a three-dimensional article, and assembling the individual cross-sect... | 08/26/2003 |
| 6416850 | Three dimensional printing materials system The present invention is directed to a Three Dimensional Printing materials systems and method that satisfies the need for a quick, reliable, safe, and inexpensive method for producing both appearance models and small numbers of functional parts in an off... | 07/09/2002 |
