Patents by Inventor Robert Heim

Robert Heim 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: 7572567
    Abstract: Processes for preparing toner compositions used with electrostatographic imaging members. The processes utilize screw extruders to facilitate continuous dispersion and aggregation of toner components, such as color pigments and wax. The continuous dispersion produces the toner components with more control and better product yield. The products produced are also improved in quality.
    Type: Grant
    Filed: November 21, 2006
    Date of Patent: August 11, 2009
    Assignee: Xerox Corporation
    Inventors: Joo T. Chung, Zhen Lai, Joseph Leonardo, Derrick Black, Robert Heim
  • Publication number: 20080138738
    Abstract: Processes for preparing toner compositions used with electrostatographic imaging members. The processes utilize screw extruders to facilitate continuous dispersion and aggregation of toner components, such as color pigments and wax. The continuous dispersion produces the toner components with more control and better product yield. The products produced are also improved in quality.
    Type: Application
    Filed: November 21, 2006
    Publication date: June 12, 2008
    Applicant: Xerox Corporation
    Inventors: Joo T. Chung, Zhen Lai, Chieh-Min Cheng, Joseph Leonardo, Derrick Black, Robert Heim
  • Publication number: 20080138739
    Abstract: Processes for preparing toner compositions used with electrostatographic imaging members. The processes utilize screw extruders to facilitate continuous dispersion and aggregation of toner components, such as color pigments and wax. The continuous dispersion produces the toner components with more control and better product yield. The products produced are also improved in quality.
    Type: Application
    Filed: November 21, 2006
    Publication date: June 12, 2008
    Applicant: Xerox Corporation
    Inventors: Joo T. Chung, Zhen Lai, Joseph Leonardo, Derrick Black, Robert Heim
  • Publication number: 20070248904
    Abstract: Toner particles are prepared by a process comprising providing an extrusion apparatus; adding resin particles and additive particles to a supply means in the extrusion apparatus; adding the resin particles and the additive particles to a blending chamber in the extrusion apparatus, which blending chamber is maintained at a temperature of from about 50° C. to about 120° C.; blending the resin particles and the additive particles to form a mixture; extruding the resin particles to form extruded material; injecting liquid substances, which have a lower boiling point than the melt temperature of the resin particles, into the blending chamber during extrusion without the application of a vacuum to remove the liquid substances prior to extrusion; and grinding the extruded material to form toner particles.
    Type: Application
    Filed: June 22, 2007
    Publication date: October 25, 2007
    Applicant: XEROX CORPORATION
    Inventors: Mark Mang, Joseph Leonardo, Hui Chang, Robert Heim
  • Publication number: 20060046179
    Abstract: Toner particles are prepared by a process comprising providing an extrusion apparatus; adding resin particles and additive particles to a supply means in the extrusion apparatus; adding the resin particles and the additive particles to a blending chamber in the extrusion apparatus, which blending chamber is maintained at a temperature of from about 50° C. to about 120° C.; blending the resin particles and the additive particles to form a mixture; extruding the resin particles to form extruded material; injecting liquid substances, which have a lower boiling point than the melt temperature of the resin particles, into the blending chamber during extrusion without the application of a vacuum to remove the liquid substances prior to extrusion; and grinding the extruded material to form toner particles.
    Type: Application
    Filed: August 31, 2004
    Publication date: March 2, 2006
    Applicant: XEROX CORPORATION
    Inventors: Mark Mang, Joseph Leonardo, Hui Chang, Robert Heim
  • Patent number: D975792
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: January 17, 2023
    Assignee: LEGO A/S
    Inventor: Robert Heim
  • Patent number: D975793
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: January 17, 2023
    Assignee: LEGO A/S
    Inventor: Robert Heim
  • Patent number: D1098297
    Type: Grant
    Filed: December 20, 2023
    Date of Patent: October 14, 2025
    Assignee: LEGO A/S
    Inventor: Robert Heim
  • Patent number: D1098301
    Type: Grant
    Filed: December 20, 2023
    Date of Patent: October 14, 2025
    Assignee: LEGO A/S
    Inventor: Robert Heim
  • Patent number: D1117521
    Type: Grant
    Filed: December 20, 2023
    Date of Patent: March 10, 2026
    Assignee: LEGO A/S
    Inventor: Robert Heim