TREA

Arthur Helbrecht

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  • Oakville, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Latex processes
    • Patent number 6,503,680
    • Issue date Jan 7, 2003
    • Xerox Corporation
    • Allan K. Chen
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Semicontinuous emulsion polymerization process for making silica-co...
    • Patent number 6,455,219
    • Issue date Sep 24, 2002
    • Xerox Corporation
    • Allan K. Chen
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polymerization processes
    • Patent number 6,447,974
    • Issue date Sep 10, 2002
    • Xerox Corporation
    • Allan K. Chen
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Toner processes
    • Patent number 5,962,179
    • Issue date Oct 5, 1999
    • Xerox Corporation
    • Enno E. Agur
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Low shear toner aggregation processes
    • Patent number 5,650,255
    • Issue date Jul 22, 1997
    • Xerox Corporation
    • T. Hwee Ng
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Toner processes
    • Patent number 5,650,256
    • Issue date Jul 22, 1997
    • Xerox Corporation
    • Richard P. N. Veregin
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Toner grafting processes
    • Patent number 5,650,252
    • Issue date Jul 22, 1997
    • Xerox Corporation
    • T. Hwee Ng
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY