Patents by Inventor Patricia A. Wang
Patricia A. Wang 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: 11479683Abstract: In one aspect, inks for use with a three-dimensional printing system are described herein. In some embodiments, an ink described herein comprises up to about 90 wt. % monofunctional curable material, up to about 10 wt. % difunctional curable material, and up to about 10 wt. % liquid rubber, based on the total weight of the ink, wherein the liquid rubber comprises one or more curable moieties. In some cases, the liquid rubber comprises one or more ethylenically unsaturated moieties. For example, in some instances, the liquid rubber comprises a butadiene acrylonitrile copolymer.Type: GrantFiled: August 23, 2021Date of Patent: October 25, 2022Assignee: 3D SYSTEMS, INC.Inventors: John Wai Fong, Patricia Wang
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Patent number: 11292927Abstract: In one aspect, inks for use with a three-dimensional printing system are described herein. In some embodiments, an ink described herein comprises up to about 90 wt. % monofunctional curable material, up to about 10 wt. % difunctional curable material, and up to about 10 wt. % liquid rubber, based on the total weight of the ink, wherein the liquid rubber comprises one or more curable moieties. In some cases, the liquid rubber comprises one or more ethyleneically unsaturated moieties. For example, in some instances, the liquid rubber comprises a butadiene acrylonitrile copolymer.Type: GrantFiled: September 7, 2018Date of Patent: April 5, 2022Assignee: 3D SYSTEMS, INCORPORATEDInventors: John Wai Fong, Patricia Wang
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Publication number: 20220072836Abstract: In one aspect, inks for use with a three-dimensional printing system are described herein. In some embodiments, an ink described herein is a composite ink. Such a composite ink, in some cases, comprises an optically transparent or substantially transparent carrier ink comprising a curable material; and a colorant dispersed in the carrier ink in an amount of about 0.01 to 5 weight %, based on the total weight of the composite ink.Type: ApplicationFiled: November 15, 2021Publication date: March 10, 2022Inventors: Patricia WANG, Pingyong Xu, Jule W. Thomas, JR., Michael B. Meinhardt
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Patent number: 11203191Abstract: In one aspect, inks for use with a three-dimensional printing system are described herein. In some embodiments, an ink described herein is a composite ink. Such a composite ink, in some cases, comprises an optically transparent or substantially transparent carrier ink comprising a curable material; and a colorant dispersed in the carrier ink in an amount of about 0.01 to 5 weight %, based on the total weight of the composite ink.Type: GrantFiled: July 20, 2018Date of Patent: December 21, 2021Assignee: 3D Systems, Inc.Inventors: Patricia Wang, Pingyong Xu, Jule W. Thomas, Jr., Michael B. Meinhardt
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Publication number: 20210380825Abstract: In one aspect, inks for use with a three-dimensional printing system are described herein. In some embodiments, an ink described herein comprises up to about 90 wt. % monofunctional curable material, up to about 10 wt. % difunctional curable material, and up to about 10 wt. % liquid rubber, based on the total weight of the ink, wherein the liquid rubber comprises one or more curable moieties. In some cases, the liquid rubber comprises one or more ethylenically unsaturated moieties. For example, in some instances, the liquid rubber comprises a butadiene acrylonitrile copolymer.Type: ApplicationFiled: August 23, 2021Publication date: December 9, 2021Inventors: John Wai Fong, Patricia Wang
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Publication number: 20190002713Abstract: In one aspect, inks for use with a three-dimensional printing system are described herein. In some embodiments, an ink described herein comprises up to about 90 wt. % monofunctional curable material, up to about 10 wt. % difunctional curable material, and up to about 10 wt. % liquid rubber, based on the total weight of the ink, wherein the liquid rubber comprises one or more curable moieties. In some cases, the liquid rubber comprises one or more ethyleneically unsaturated moieties. For example, in some instances, the liquid rubber comprises a butadiene acrylonitrile copolymer.Type: ApplicationFiled: September 7, 2018Publication date: January 3, 2019Inventors: John Wai Fong, Patricia Wang
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Publication number: 20180326713Abstract: In one aspect, inks for use with a three-dimensional printing system are described herein. In some embodiments, an ink described herein is a composite ink. Such a composite ink, in some cases, comprises an optically transparent or substantially transparent carrier ink comprising a curable material; and a colorant dispersed in the carrier ink in an amount of about 0.01 to 5 weight %, based on the total weight of the composite ink.Type: ApplicationFiled: July 20, 2018Publication date: November 15, 2018Inventors: Patricia WANG, Pingyong XU, Jule W. THOMAS, Jr., Michael B. MEINHARDT
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Patent number: 10052861Abstract: In one aspect, inks for use with a three-dimensional printing system are described herein. In some embodiments, an ink described herein is a composite ink. Such a composite ink, in some cases, comprises an optically transparent or substantially transparent carrier ink comprising a curable material; and a colorant dispersed in the carrier ink in an amount of about 0.01 to 5 weight %, based on the total weight of the composite ink.Type: GrantFiled: March 11, 2015Date of Patent: August 21, 2018Assignee: 3D Systems, Inc.Inventors: Patricia Wang, Pingyong Xu, Jule W. Thomas, Jr., Michael B. Meinhardt
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Publication number: 20170298244Abstract: In one aspect, methods of printing a three-dimensional article are described herein. In some embodiments, a method described herein comprises jetting an ink at a temperature T1 onto a substrate at a temperature T2 to form a layer of the ink on the substrate. The method further comprises subsequently curing the layer of the ink. In some embodiments, T1 is greater than T2 and the ink in an uncured state has a liquid-gel transition temperature below T1 and above T2. Further, the layer of the ink is deposited on the substrate at a rate R1 in mg/s/in2 that is within 60% of a gelation rate R2 of the ink in inverse minutes in an uncured state at T2. The ink can comprise a curable material and a gellant.Type: ApplicationFiled: July 3, 2017Publication date: October 19, 2017Inventors: Don TITTERINGTON, Patricia WANG, Bo WU
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Patent number: 9732241Abstract: In one aspect, methods of printing a three-dimensional article are described herein. In some embodiments, a method described herein comprises jetting an ink at a temperature T1 onto a substrate at a temperature T2 to form a layer of the ink on the substrate. The method further comprises subsequently curing the layer of the ink. In some embodiments, T1 is greater than T2 and the ink in an uncured state has a liquid-gel transition temperature below T1 and above T2. Further, the layer of the ink is deposited on the substrate at a rate R1 in mg/s/in2 that is within 60% of a gelation rate R2 of the ink in inverse minutes in an uncured state at T2. The ink can comprise a curable material and a gellant.Type: GrantFiled: June 4, 2015Date of Patent: August 15, 2017Assignee: 3D Systems, Inc.Inventors: Don Titterington, Patricia Wang, Bo Wu
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Publication number: 20160145452Abstract: In one aspect, inks for use with a three-dimensional printing system are described herein. In some embodiments, an ink described herein comprises up to about 90 wt. % monofunctional curable material, up to about 10 wt. % difunctional curable material, and up to about 10 wt. % liquid rubber, based on the total weight of the ink, wherein the liquid rubber comprises one or more curable moieties. In some cases, the liquid rubber comprises one or more ethyleneically unsaturated moieties. For example, in some instances, the liquid rubber comprises a butadiene acrylonitrile copolymer.Type: ApplicationFiled: November 23, 2015Publication date: May 26, 2016Inventors: John Wai FONG, Patricia WANG
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Publication number: 20150353750Abstract: In one aspect, methods of printing a three-dimensional article are described herein. In some embodiments, a method described herein comprises jetting an ink at a temperature T1 onto a substrate at a temperature T2 to form a layer of the ink on the substrate. The method further comprises subsequently curing the layer of the ink. In some embodiments, T1 is greater than T2 and the ink in an uncured state has a liquid-gel transition temperature below T1 and above T2. Further, the layer of the ink is deposited on the substrate at a rate R1 in mg/s/in2 that is within 60% of a gelation rate R2 of the ink in inverse minutes in an uncured state at T2. The ink can comprise a curable material and a gellant.Type: ApplicationFiled: June 4, 2015Publication date: December 10, 2015Inventors: Don TITTERINGTON, Patricia WANG, Bo WU
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Publication number: 20150259548Abstract: In one aspect, inks for use with a three-dimensional printing system are described herein. In some embodiments, an ink described herein is a composite ink. Such a composite ink, in some cases, comprises an optically transparent or substantially transparent carrier ink comprising a curable material; and a colorant dispersed in the carrier ink in an amount of about 0.01 to 5 weight %, based on the total weight of the composite ink.Type: ApplicationFiled: March 11, 2015Publication date: September 17, 2015Inventors: Patricia WANG, Pingyong XU, Jule W. THOMAS, JR., Michael B. MEINHARDT
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Patent number: 8801157Abstract: A liquid ink transport assembly mitigates the migration of ink dye from one conduit in a plurality of conduits to another conduit in the plurality of conduits. The liquid ink transport assembly includes a plurality of conduits, each conduit in the plurality having a first end and a second end, the conduits in the plurality being arranged in a parallel configuration with at least one conduit being spatially separated from an adjacent conduit by a first distance that is greater than a second distance spatially separating other conduits in the plurality of conduits, and a heater, the plurality of conduits being positioned proximate to a first side of the heater to enable the heater to heat ink being carried between the first and the second ends of the plurality of conduits.Type: GrantFiled: April 16, 2013Date of Patent: August 12, 2014Assignee: Xerox CorporationInventors: Chad David Freitag, Pratima G. N. Rao, Patricia A. Wang, Tony R. Rogers, Bhaskar T. Ramakrishnan
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Publication number: 20140208977Abstract: A composition that has a low volatile organic compound (VOC) content and methods for producing compositions having a low VOC content. The composition, such as a solid ink and/or toner release oil composition, may include less than about 0.15% by weight VOCs that have a sufficient vapor pressure at the operating temperature of printing device to enter the gas phase at the operating temperature of the printing device.Type: ApplicationFiled: January 29, 2013Publication date: July 31, 2014Applicant: XEROX CORPORATIONInventors: Christopher Auguste DIRUBIO, William C. DEAN, Jeffrey C. SHELTON, Patricia A. WANG
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Patent number: 8771523Abstract: A composition that has a low volatile organic compound (VOC) content and methods for producing compositions having a low VOC content. The composition, such as a solid ink and/or toner release oil composition, may include less than about 0.15% by weight VOCs that have a sufficient vapor pressure at the operating temperature of printing device to enter the gas phase at the operating temperature of the printing device.Type: GrantFiled: January 29, 2013Date of Patent: July 8, 2014Assignee: Xerox CorporationInventors: Christopher Auguste Dirubio, William C. Dean, Jeffrey C. Shelton, Patricia A. Wang
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Publication number: 20130229472Abstract: A liquid ink transport assembly mitigates the migration of ink dye from one conduit in a plurality of conduits to another conduit in the plurality of conduits. The liquid ink transport assembly includes a plurality of conduits, each conduit in the plurality having a first end and a second end, the conduits in the plurality being arranged in a parallel configuration with at least one conduit being spatially separated from an adjacent conduit by a first distance that is greater than a second distance spatially separating other conduits in the plurality of conduits, and a heater, the plurality of conduits being positioned proximate to a first side of the heater to enable the heater to heat ink being carried between the first and the second ends of the plurality of conduits.Type: ApplicationFiled: April 16, 2013Publication date: September 5, 2013Applicant: Xerox CorporationInventors: Chad David Freitag, Pratima G.N. Rao, Patricia A. Wang, Tony R. Rogers, Bhaskar T. Ramakrishnan
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Patent number: 8469497Abstract: A liquid ink transport assembly mitigates the migration of ink dye from one conduit in a plurality of conduits to another conduit in the plurality of conduits. The liquid ink transport assembly includes a plurality of conduits, each conduit in the plurality having a first end and a second end, the conduits in the plurality being arranged in a parallel configuration with at least one conduit being spatially separated from an adjacent conduit by a first distance that is greater than a second distance spatially separating other conduits in the plurality of conduits, and a heater, the plurality of conduits being positioned proximate to a first side of the heater to enable the heater to heat ink being carried between the first and the second ends of the plurality of conduits.Type: GrantFiled: February 4, 2010Date of Patent: June 25, 2013Assignee: Xerox CorporationInventors: Chad David Freitag, Pratima G. N. Rao, Patricia A. Wang, Tony R. Rogers, Bhaskar T. Ramakrishnan
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Publication number: 20110187800Abstract: A liquid ink transport assembly mitigates the migration of ink dye from one conduit in a plurality of conduits to another conduit in the plurality of conduits. The liquid ink transport assembly includes a plurality of conduits, each conduit in the plurality having a first end and a second end, the conduits in the plurality being arranged in a parallel configuration with at least one conduit being spatially separated from an adjacent conduit by a first distance that is greater than a second distance spatially separating other conduits in the plurality of conduits, and a heater, the plurality of conduits being positioned proximate to a first side of the heater to enable the heater to heat ink being carried between the first and the second ends of the plurality of conduits.Type: ApplicationFiled: February 4, 2010Publication date: August 4, 2011Applicant: XEROX CORPORATIONInventors: Chad David Freitag, Pratima G. N. Rao, Patricia A. Wang, Tony R. Rogers, Bhaskar T. Ramakrishnan
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Patent number: 7678844Abstract: Compositions, systems, and methods of printing an ink-jet image are provided. The composition can include a liquid vehicle including water, a liquid vehicle having from 5 wt % to 35 wt % of total organic solvent content; from 1 wt % to 6 wt % of acid-functionalized pigment solids; and from 0.001 wt % to 6 wt % of styrene-maleic anhydride copolymer, said styrene-maleic anhydride copolymer having a weight average molecular weight from about 400 Mw to 15,000 Mw.Type: GrantFiled: March 22, 2004Date of Patent: March 16, 2010Assignee: Hewlett-Packard Development Company, L.P.Inventors: Zia Rehman, Paul Tyrell, Marlene McGorrin, Mary E Austin, Alexey S Kabalnov, Patricia A Wang