Patents by Inventor Eric S. Epstein

Eric S. Epstein 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).

  • Publication number: 20260008231
    Abstract: Sealing components having complex shapes and smooth surfaces are may be fabricated using coreactive three-dimensional printing. More specifically the invention relates to chemically resistant sealing components and methods of making said sealing components using three-dimensional printing, and that may be used in vehicle applications.
    Type: Application
    Filed: September 9, 2025
    Publication date: January 8, 2026
    Applicant: PPG Industries Ohio, Inc.
    Inventors: Cynthia Kutchko, Eric S. Epstein, Bryan W. Wilkinson, Zhisong Huang, Sean J. Manion, Kerianne M. Dobosz
  • Patent number: 12503544
    Abstract: Compositions comprising a combination of low molecular weight prepolymers and high molecular weight prepolymers are disclosed. The compositions are used to fabricate elastomeric articles having high tensile strength and high tensile elongation.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: December 23, 2025
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Cynthia Kutchko, Brian Chiang, Bryan W. Wilkinson, Eric S. Epstein, Michael A. Bubas
  • Patent number: 12434434
    Abstract: Sealing components having complex shapes and smooth surfaces are may be fabricated using coreactive three-dimensional printing. More specifically the invention relates to chemically resistant sealing components and methods of making said sealing components using three-dimensional printing, and that may be used in vehicle applications.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: October 7, 2025
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Cynthia Kutchko, Eric S. Epstein, Bryan W. Wilkinson, Zhisong Huang, Sean J. Manion, Kerianne M. Dobosz
  • Patent number: 12390992
    Abstract: Additive manufacturing compositions and methods may include a resin stabilized pigment. The pigment may be easily combined with at least one component of a co-reactive system, such as a co-reactive prepolymer formulation, via solid mixing without the need for grinding or additional solvents. The prepolymer formulation may be pigmented, printed, and cured under ambient conditions, and one or more pigments may be incorporated into the composition to change the color of the composition during printing and/or to selectively change the color of the printed article among several colors.
    Type: Grant
    Filed: April 5, 2021
    Date of Patent: August 19, 2025
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Bryan W. Wilkinson, Daniel M. Connor, Cynthia Kutchko, Eric S. Epstein, Scott J. Moravek, Brian K. Rearick, Brian Chiang
  • Publication number: 20250144926
    Abstract: Methods of making multilayer systems comprising a sealant layer by extruding a coreactive sealant composition are disclosed. The methods can be used to fabricate multilayer systems in which individual layers have different cured properties. Individual layers can also have an inhomogeneous concentration of one or more constituents within a layer. The multilayer systems can be made using three-dimensional printing that facilitate the use of a wide range of coreactive compositions.
    Type: Application
    Filed: January 9, 2025
    Publication date: May 8, 2025
    Inventors: Cynthia Kutchko, Michael A. Bubas, Bryan W. Wilkinson, Eric S. Epstein, Weibin Cui, Renhe Lin
  • Patent number: 12226983
    Abstract: Methods of making multilayer systems comprising a sealant layer by extruding a coreactive sealant composition are disclosed. The methods can be used to fabricate multilayer systems in which individual layers have different cured properties. Individual layers can also have an inhomogeneous concentration of one or more constituents within a layer. The multilayer systems can be made using three-dimensional printing that facilitate the use of a wide range of coreactive compositions.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: February 18, 2025
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Cynthia Kutchko, Michael A. Bubas, Bryan W. Wilkinson, Eric S. Epstein, Weibin Cui, Renhe Lin
  • Publication number: 20250050585
    Abstract: A computer system for dynamically controlling printing parameters within a three-dimensional printer receives an indication for printing a target object by the three-dimensional printer. The computer system accesses a materials attribute dataset. The materials attribute dataset describes different material properties of a plurality of thermoset materials or mixtures thereof. Based upon the materials attribute dataset, for each of the plurality of extruders, the computer system selects one or more thermoset materials among the plurality of thermoset materials for each of the plurality of extruder to form an extrudate and determines an extrusion configuration for the selected one or more thermoset materials. The computer system then generates a command to cause the plurality of extruders of the thermoset three-dimensional printer to implement the extrusion configurations for the plurality of extruders while printing the target object.
    Type: Application
    Filed: October 18, 2022
    Publication date: February 13, 2025
    Applicant: PPG Industries Ohio, Inc.
    Inventors: Eric S. Epstein, Anthony Jared Fogl, Michael Anthony Bubas, Kerianne Merceline Dobosz, Minh A. Tong
  • Publication number: 20230212435
    Abstract: Disclosed is a composition comprising a molecule comprising an electrophilic functional group, optionally a second molecule comprising a nucleophilic functional group, and a thermally conductive filler package. The filler package may comprise thermally conductive, electrically insulative filler particles that may have a thermal conductivity of at least 5 W/m·K (measured according to ASTM D7984) and a volume resistivity of at least 10 ?·m (measured according to ASTM D257, C611, or B193) and that may be present in an amount of at least 50% by volume based on total volume of the filler package. The thermally conductive filler package may be present in an amount of at least 10% by volume percent based on total volume of the composition. The present invention also is directed to a method for treating a substrate and to substrates comprising a layer formed from a compositions disclosed herein.
    Type: Application
    Filed: April 14, 2021
    Publication date: July 6, 2023
    Applicant: PPG Industries Ohio, Inc.
    Inventors: Liang Ma, Allison G. Condie, Marvin M. Pollum, Jr., Maria S. French, Lorraine Hsu, Shuyu Fang, Hong Li, Calum H. Munro, Cynthia Kutchko, Eric S. Epstein, Gobinda Saha
  • Publication number: 20230202103
    Abstract: Additive manufacturing compositions and methods may include a resin stabilized pigment. The pigment may be easily combined with at least one component of a co-reactive system, such as a co-reactive prepolymer formulation, via solid mixing without the need for grinding or additional solvents. The prepolymer formulation may be pigmented, printed, and cured under ambient conditions, and one or more pigments may be incorporated into the composition to change the color of the composition during printing and/or to selectively change the color of the printed article among several colors.
    Type: Application
    Filed: April 5, 2021
    Publication date: June 29, 2023
    Applicant: PPG Industries Ohio, Inc.
    Inventors: Bryan W. Wilkinson, Daniel M. Connor, Cynthia Kutchko, Eric S. Epstein, Scott J. Moravek, Brian K. Rearick, Brian Chiang
  • Publication number: 20220134723
    Abstract: Methods of making multilayer systems comprising a sealant layer by extruding a coreactive sealant composition are disclosed. The methods can be used to fabricate multilayer systems in which individual layers have different cured properties. Individual layers can also have an inhomogeneous concentration of one or more constituents within a layer. The multilayer systems can be made using three-dimensional printing that facilitate the use of a wide range of coreactive compositions.
    Type: Application
    Filed: February 10, 2020
    Publication date: May 5, 2022
    Applicant: PPG Industries Ohio, Inc.
    Inventors: Cynthia Kutchko, Michael A. Bubas, Bryan W. Wilkinson, Eric S. Epstein, Weibin Cui, Renhe Lin
  • Publication number: 20220126516
    Abstract: Coreactive three-dimensional printing of parts using coreactive compositions is disclosed. Coreactive additive manufacturing can be used to fabricate parts having a wide range of properties.
    Type: Application
    Filed: February 10, 2020
    Publication date: April 28, 2022
    Applicant: PPG Industries Ohio, Inc.
    Inventors: Cynthia Kutchko, Eric S. Epstein, Bryan W. Wilkinson, Michael A. Bubas
  • Publication number: 20220098355
    Abstract: Compositions comprising a combination of low molecular weight prepolymers and high molecular weight prepolymers are disclosed. The compositions are used to fabricate elastomeric articles having high tensile strength and high tensile elongation.
    Type: Application
    Filed: February 10, 2020
    Publication date: March 31, 2022
    Applicant: PPG Industries Ohio, Inc.
    Inventors: Cynthia Kutchko, Brian Chiang, Bryan W. Wilkinson, Eric S. Epstein, Michael A. Bubas
  • Publication number: 20220097299
    Abstract: Sealing components having complex shapes and smooth surfaces are may be fabricated using coreactive three-dimensional printing. More specifically the invention relates to chemically resistant sealing components and methods of making said sealing components using three-dimensional printing, and that may be used in vehicle applications.
    Type: Application
    Filed: February 10, 2020
    Publication date: March 31, 2022
    Applicant: PPG Industries Ohio, Inc.
    Inventors: Cynthia Kutchko, Eric S. Epstein, Bryan W. Wilkinson, Zhisong Huang, Sean J. Manion, Kerianne M. Dobosz
  • Patent number: 10073293
    Abstract: An optical microcavity for a high-contrast display comprises an enclosed cavity having a front wall and a back wall, where the front wall comprises a pinhole opening for emission of light from the cavity and the back wall is configured to generate or transmit light into the cavity. An outer surface of the front wall absorbs some or substantially all optical wavelengths of externally incident light so as to appear black or colored. An inner surface of the front wall comprises a light reflectivity of greater than 90% to promote photon recycling within the cavity and light emission through the pinhole opening.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: September 11, 2018
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Paul V. Braun, Osman S. Cifci, Eric S. Epstein, Hao Chen, Lu Xu, Ralph G. Nuzzo
  • Publication number: 20170293169
    Abstract: An optical microcavity for a high-contrast display comprises an enclosed cavity having a front wall and a back wall, where the front wall comprises a pinhole opening for emission of light from the cavity and the back wall is configured to generate or transmit light into the cavity. An outer surface of the front wall absorbs some or substantially all optical wavelengths of externally incident light so as to appear black or colored. An inner surface of the front wall comprises a light reflectivity of greater than 90% to promote photon recycling within the cavity and light emission through the pinhole opening.
    Type: Application
    Filed: April 11, 2017
    Publication date: October 12, 2017
    Inventors: Paul V. Braun, Osman S. Cifci, Eric S. Epstein, Hao Chen, Lu Xu, Ralph G. Nuzzo