Patents by Inventor Gregory Ellson
Gregory Ellson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11926103Abstract: An approach to precision additive fabrication uses jetting of cationic compositions in conjunction with a non-contact (e.g., optical) feedback approach. By not requiring contact to control the surface geometry of the object being manufactured, the approach is tolerant of the relative slow curing of the cationic composition, while maintaining the benefit of control of the deposition processes according to feedback during the fabrication processes. This approach provides a way to manufacture precision objects and benefit from material properties of the fabricated objects, for example, with isotropic properties, which may be at least partially a result of the slow curing, and flexible structures, which may not be attainable using conventional jetted acrylates.Type: GrantFiled: November 12, 2021Date of Patent: March 12, 2024Assignee: Inkbit, LLCInventors: Wenshou Wang, Gregory Ellson, Yan Zhang, Desai Chen, Javier Ramos, Wojciech Matusik, Kiril Vidimce
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Publication number: 20240051219Abstract: A method for additive fabrication of an object on a build platform includes depositing material onto a partial fabrication of the object in a number of passes of a printhead over the partial fabrication. The depositing includes repeatedly depositing material onto the partial fabrication in a pass of the printhead over the partial fabrication. The depositing includes depositing a first material onto the partial fabrication at a first height relative to the build platform, and depositing a second material onto the partial fabrication at a second height relative to the build platform, the second height being less than the first height, the depositing of the second material including forming at least one material transition region between the second material at the second height and first material at the second height deposited in a previous pass.Type: ApplicationFiled: August 15, 2022Publication date: February 15, 2024Inventors: Wojciech Matusik, Desai Chen, Javier Ramos, Gregory Ellson
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Patent number: 11712837Abstract: A method for additive manufacturing includes forming an object including depositing a first material including a first coloring component and a second material including a second coloring component, wherein both the first material and the second material further include a corresponding fluorescent component, scanning the object, including causing an emission of an optical signal from the object, wherein the emission of the optical signal is caused at least in part by an emission from the fluorescent components interacting with the first coloring component and the second coloring component as it passes from the fluorescent components to the surface of the object, sensing the emission of the optical signal, and determining presence of the first material and the second material based at least in part on the sensed emission of the optical signal.Type: GrantFiled: May 4, 2021Date of Patent: August 1, 2023Assignee: Inkbit, LLCInventors: Wojciech Matusik, Aaron Weber, Desai Chen, Gregory Ellson, Javier Ramos, Davide Marini
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Patent number: 11667071Abstract: An inkjet printer includes a mixer and a metering system that system provides appropriate amounts of the resin's precursors into the mixer. The mixer thoroughly mixes these precursors and feeds the resulting resin to the printheads. The inkjet printer may include a cleaning system that removes residual resin during or after printing.Type: GrantFiled: November 15, 2019Date of Patent: June 6, 2023Assignee: Inkbit, LLCInventors: Javier Ramos, Gregory Ellson, David B. Russell, Wenshou Wang
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Patent number: 11628622Abstract: A profilometer provides, to a controller, a feedback signal indicative of topography of an exposed surface of an object that is being manufactured by a 3d printer. The profilometer includes an emitter and a camera. The emitter illuminates a region of surface of the object with a pattern having an edge that defines a boundary of an illuminated portion of the surface. The camera receives an image that transitions between a first state in which the edge is visible in the image at a location that is indicative of the surface's depth and a second state in which the edge is not visible at all. From this second state, the controller obtains information representative of a depth of the surface.Type: GrantFiled: July 1, 2021Date of Patent: April 18, 2023Assignee: Inkbit, LLCInventors: Aaron Weber, Desai Chen, Harrison Wang, Gregory Ellson, Wojciech Matusik
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Publication number: 20220332882Abstract: A composition suitable for 3-D printing comprises, in one embodiment, a photopolymer including one or more thiol monomer, one or more alkene monomer, and a polymerization initiator. In another embodiment, the thiol monomer is selected from the group consisting of: glycol di(3-mercaptopropionate) [GDMP]; trimethylolpropane tris(3-mercaptopropionate) [TMPMP]; pentaerythritol tetrakis(3-mercaptopropionate) [PETMP] and 3,6-dioxa-1,8-octanedithiol [DODT]. In yet another embodiment, the alkene monomer comprises: an allyl-functional urethane/urea monomer synthesized from: an isocyanate moiety and a hydroxyl or amine functional allyl moiety. In still another embodiment, the hydroxyl or amine functional allyl moiety comprises 2-allyloxyethanol, allyl alcohol, and allylamine.Type: ApplicationFiled: November 16, 2021Publication date: October 20, 2022Inventors: Gregory ELLSON, Wenshou WANG, Yan ZHANG
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Publication number: 20220281176Abstract: An approach to precision additive fabrication uses jetting of cationic compositions in conjunction with a non-contact (e.g., optical) feedback approach. By not requiring contact to control the surface geometry of the object being manufactured, the approach is tolerant of the relative slow curing of the cationic composition, while maintaining the benefit of control of the deposition processes according to feedback during the fabrication processes. This approach provides a way to manufacture precision objects and benefit from material properties of the fabricated objects, for example, with isotropic properties, which may be at least partially a result of the slow curing, and flexible structures, which may not be attainable using conventional jetted acrylates.Type: ApplicationFiled: November 12, 2021Publication date: September 8, 2022Inventors: Wenshou Wang, Gregory Ellson, Yan Zhang, Desai Chen, Javier Ramos, Wojciech Matusik, Kiril Vidimce
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Publication number: 20220161494Abstract: A profilometer provides, to a controller, a feedback signal indicative of topography of an exposed surface of an object that is being manufactured by a 3d printer. The profilometer includes an emitter and a camera. The emitter illuminates a region of surface of the object with a pattern having an edge that defines a boundary of an illuminated portion of the surface. The camera receives an image that transitions between a first state in which the edge is visible in the image at a location that is indicative of the surface's depth and a second state in which the edge is not visible at all. From this second state, the controller obtains information representative of a depth of the surface.Type: ApplicationFiled: July 1, 2021Publication date: May 26, 2022Inventors: Aaron Weber, Desai Chen, Harrison Wang, Gregory Ellson, Wojciech Matusik
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Publication number: 20220119587Abstract: The present disclosure relates to materials for photoinitiated cationic ring-opening polymerization (ROP). The present disclosure also relates to uses of the materials, e.g., in 3D printing.Type: ApplicationFiled: December 28, 2021Publication date: April 21, 2022Inventors: Gregory ELLSON, Scott TWIDDY
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Publication number: 20220024136Abstract: A method includes generating correction data for a construction material that is used by an additive-manufacturing machine to manufacture an object. This correction data compensates for an interaction of the construction material with first radiation that has been used to illuminate the construction material.Type: ApplicationFiled: July 1, 2021Publication date: January 27, 2022Inventors: Aaron Weber, Desai Chen, Harrison Wang, Gregory Ellson, Wojciech Matusik
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Patent number: 11208521Abstract: A composition suitable for 3-D printing comprises, in one embodiment, a photopolymer including one or more thiol monomer, one or more alkene monomer, and a polymerization initiator. In another embodiment, the thiol monomer is selected from the group consisting of: glycol di(3-mercaptopropionate) [GDMP]; trimethylolpropane tris(3-mercaptopropionate) [TMPMP]; pentaerythritol tetrakis(3-mercaptopropionate) [PETMP] and 3,6-dioxa-1,8-octanedithiol [DODT]. In yet another embodiment, the alkene monomer comprises: an allyl-functional urethane/urea monomer synthesized from: an isocyanate moiety and a hydroxyl or amine functional allyl moiety. In still another embodiment, the hydroxyl or amine functional allyl moiety comprises 2-allyloxyethanol, allyl alcohol, and allylamine.Type: GrantFiled: October 17, 2019Date of Patent: December 28, 2021Assignee: Inkbit, LLCInventors: Gregory Ellson, Wenshou Wang, Yan Zhang
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Publication number: 20210394436Abstract: An approach to improving optical scanning increases the strength of optical reflection from the build material during fabrication. In some examples, the approach makes use of an additive (or a combination of multiple additives) that increases the received signal strength and/or improves the received signal-to-noise ratio in optical scanning for industrial metrology. Elements not naturally present in the material are introduced in the additives in order to increase fluorescence, scattering or luminescence. Such additives may include one or more of: small molecules, polymers, peptides, proteins, metal or semiconductive nanoparticles, and silicate nanoparticles.Type: ApplicationFiled: May 4, 2021Publication date: December 23, 2021Inventors: Wojciech Matusik, Gregory Ellson, Desai Chen, Javier Ramos, Davide Marini, Aaron Weber
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Publication number: 20210380795Abstract: The present disclosure relates to reinforcing photopolymer resins and uses thereof, e.g., in inkjet 3D printing.Type: ApplicationFiled: October 17, 2019Publication date: December 9, 2021Inventors: Wenshou WANG, Yan ZHANG, Gregory ELLSON
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Patent number: 11173667Abstract: An approach to precision additive fabrication uses jetting of cationic compositions in conjunction with a non-contact (e.g., optical) feedback approach. By not requiring contact to control the surface geometry of the object being manufactured, the approach is tolerant of the relative slow curing of the cationic composition, while maintaining the benefit of control of the deposition processes according to feedback during the fabrication processes. This approach provides a way to manufacture precision objects and benefit from material properties of the fabricated objects, for example, with isotropic properties, which may be at least partially a result of the slow curing, and flexible structures, which may not be attainable using conventional jetted acrylates.Type: GrantFiled: July 10, 2020Date of Patent: November 16, 2021Assignee: Inkbit LLCInventors: Wenshou Wang, Gregory Ellson, Yan Zhang, Desai Chen, Javier Ramos, Wojciech Matusik, Kiril Vidimce
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Publication number: 20210252775Abstract: A method for additive manufacturing includes forming an object including depositing a first material including a first coloring component and a second material including a second coloring component, wherein both the first material and the second material further include a corresponding fluorescent component, scanning the object, including causing an emission of an optical signal from the object, wherein the emission of the optical signal is caused at least in part by an emission from the fluorescent components interacting with the first coloring component and the second coloring component as it passes from the fluorescent components to the surface of the object, sensing the emission of the optical signal, and determining presence of the first material and the second material based at least in part on the sensed emission of the optical signal.Type: ApplicationFiled: May 4, 2021Publication date: August 19, 2021Inventors: Wojciech Matusik, Aaron Weber, Desai Chen, Gregory Ellson, Javier Ramos, Davide Marini
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Patent number: 11072120Abstract: A profilometer provides, to a controller, a feedback signal indicative of topography of an exposed surface of an object that is being manufactured by a 3d printer. The profilometer includes an emitter and a camera. The emitter illuminates a region of surface of the object with a pattern having an edge that defines a boundary of an illuminated portion of the surface. The camera receives an image that transitions between a first state in which the edge is visible in the image at a location that is indicative of the surface's depth and a second state in which the edge is not visible at all. From this second state, the controller obtains information representative of a depth of the surface.Type: GrantFiled: July 23, 2020Date of Patent: July 27, 2021Assignee: Inkbit, LLCInventors: Aaron Weber, Desai Chen, Harrison Wang, Gregory Ellson, Wojciech Matusik
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Patent number: 11072125Abstract: A method includes generating correction data for a construction material that is used by an additive-manufacturing machine to manufacture an object. This correction data compensates for an interaction of the construction material with first radiation that has been used to illuminate the construction material.Type: GrantFiled: July 23, 2020Date of Patent: July 27, 2021Assignee: Inkbit, LLCInventors: Aaron Weber, Desai Chen, Harrison Wang, Gregory Ellson, Wojciech Matusik
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Publication number: 20210129423Abstract: An approach to improving optical scanning increases the strength of optical reflection from the build material during fabrication. In some examples, the approach makes use of an additive (or a combination of multiple additives) that increases the received signal strength and/or improves the received signal-to-noise ratio in optical scanning for industrial metrology. Elements not naturally present in the material are introduced in the additives in order to increase fluorescence, scattering or luminescence. Such additives may include one or more of: small molecules, polymers, peptides, proteins, metal or semiconductive nanoparticles, and silicate nanoparticles.Type: ApplicationFiled: November 1, 2019Publication date: May 6, 2021Inventors: Wojciech Matusik, Gregory Ellson
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Patent number: 10994477Abstract: An approach to improving optical scanning increases the strength of optical reflection from the build material during fabrication. In some examples, the approach makes use of an additive (or a combination of multiple additives) that increases the received signal strength and/or improves the received signal-to-noise ratio in optical scanning for industrial metrology. Elements not naturally present in the material are introduced in the additives in order to increase fluorescence, scattering or luminescence. Such additives may include one or more of: small molecules, polymers, peptides, proteins, metal or semiconductive nanoparticles, and silicate nanoparticles.Type: GrantFiled: November 1, 2019Date of Patent: May 4, 2021Assignee: Inkbit, LLCInventors: Wojciech Matusik, Gregory Ellson, Desai Chen, Javier Ramos, Davide Marini, Aaron Weber
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Patent number: 10836099Abstract: The present disclosure relates to reinforcing photopolymer resins and uses thereof, e.g., in inkjet 3D printing.Type: GrantFiled: October 17, 2019Date of Patent: November 17, 2020Assignee: Inkbit, LLCInventors: Wenshou Wang, Gregory Ellson, Yan Zhang