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).

  • Patent number: 11479683
    Abstract: 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: Grant
    Filed: August 23, 2021
    Date of Patent: October 25, 2022
    Assignee: 3D SYSTEMS, INC.
    Inventors: John Wai Fong, Patricia Wang
  • Patent number: 11292927
    Abstract: 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: Grant
    Filed: September 7, 2018
    Date of Patent: April 5, 2022
    Assignee: 3D SYSTEMS, INCORPORATED
    Inventors: John Wai Fong, Patricia Wang
  • Publication number: 20220072836
    Abstract: 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: Application
    Filed: November 15, 2021
    Publication date: March 10, 2022
    Inventors: Patricia WANG, Pingyong Xu, Jule W. Thomas, JR., Michael B. Meinhardt
  • Patent number: 11203191
    Abstract: 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: Grant
    Filed: July 20, 2018
    Date of Patent: December 21, 2021
    Assignee: 3D Systems, Inc.
    Inventors: Patricia Wang, Pingyong Xu, Jule W. Thomas, Jr., Michael B. Meinhardt
  • Publication number: 20210380825
    Abstract: 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: Application
    Filed: August 23, 2021
    Publication date: December 9, 2021
    Inventors: John Wai Fong, Patricia Wang
  • Publication number: 20190002713
    Abstract: 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: Application
    Filed: September 7, 2018
    Publication date: January 3, 2019
    Inventors: John Wai Fong, Patricia Wang
  • Publication number: 20180326713
    Abstract: 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: Application
    Filed: July 20, 2018
    Publication date: November 15, 2018
    Inventors: Patricia WANG, Pingyong XU, Jule W. THOMAS, Jr., Michael B. MEINHARDT
  • Patent number: 10052861
    Abstract: 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: Grant
    Filed: March 11, 2015
    Date of Patent: August 21, 2018
    Assignee: 3D Systems, Inc.
    Inventors: Patricia Wang, Pingyong Xu, Jule W. Thomas, Jr., Michael B. Meinhardt
  • Publication number: 20170298244
    Abstract: 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: Application
    Filed: July 3, 2017
    Publication date: October 19, 2017
    Inventors: Don TITTERINGTON, Patricia WANG, Bo WU
  • Patent number: 9732241
    Abstract: 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: Grant
    Filed: June 4, 2015
    Date of Patent: August 15, 2017
    Assignee: 3D Systems, Inc.
    Inventors: Don Titterington, Patricia Wang, Bo Wu
  • Publication number: 20160145452
    Abstract: 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: Application
    Filed: November 23, 2015
    Publication date: May 26, 2016
    Inventors: John Wai FONG, Patricia WANG
  • Publication number: 20150353750
    Abstract: 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: Application
    Filed: June 4, 2015
    Publication date: December 10, 2015
    Inventors: Don TITTERINGTON, Patricia WANG, Bo WU
  • Publication number: 20150259548
    Abstract: 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: Application
    Filed: March 11, 2015
    Publication date: September 17, 2015
    Inventors: Patricia WANG, Pingyong XU, Jule W. THOMAS, JR., Michael B. MEINHARDT
  • Patent number: 8801157
    Abstract: 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: Grant
    Filed: April 16, 2013
    Date of Patent: August 12, 2014
    Assignee: Xerox Corporation
    Inventors: Chad David Freitag, Pratima G. N. Rao, Patricia A. Wang, Tony R. Rogers, Bhaskar T. Ramakrishnan
  • Publication number: 20140208977
    Abstract: 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: Application
    Filed: January 29, 2013
    Publication date: July 31, 2014
    Applicant: XEROX CORPORATION
    Inventors: Christopher Auguste DIRUBIO, William C. DEAN, Jeffrey C. SHELTON, Patricia A. WANG
  • Patent number: 8771523
    Abstract: 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: Grant
    Filed: January 29, 2013
    Date of Patent: July 8, 2014
    Assignee: Xerox Corporation
    Inventors: Christopher Auguste Dirubio, William C. Dean, Jeffrey C. Shelton, Patricia A. Wang
  • Publication number: 20130229472
    Abstract: 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: Application
    Filed: April 16, 2013
    Publication date: September 5, 2013
    Applicant: Xerox Corporation
    Inventors: Chad David Freitag, Pratima G.N. Rao, Patricia A. Wang, Tony R. Rogers, Bhaskar T. Ramakrishnan
  • Patent number: 8469497
    Abstract: 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: Grant
    Filed: February 4, 2010
    Date of Patent: June 25, 2013
    Assignee: Xerox Corporation
    Inventors: Chad David Freitag, Pratima G. N. Rao, Patricia A. Wang, Tony R. Rogers, Bhaskar T. Ramakrishnan
  • Publication number: 20110187800
    Abstract: 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: Application
    Filed: February 4, 2010
    Publication date: August 4, 2011
    Applicant: XEROX CORPORATION
    Inventors: Chad David Freitag, Pratima G. N. Rao, Patricia A. Wang, Tony R. Rogers, Bhaskar T. Ramakrishnan
  • Patent number: 7678844
    Abstract: 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: Grant
    Filed: March 22, 2004
    Date of Patent: March 16, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zia Rehman, Paul Tyrell, Marlene McGorrin, Mary E Austin, Alexey S Kabalnov, Patricia A Wang