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John F. Cooper

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  • Hudson, NH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Uintaite-derived toners and printing inks
    • Patent number 5,378,272
    • Issue date Jan 3, 1995
    • American Gilsonite Company
    • Enrique E. Romagosa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Uintaite-derived toners and printing inks
    • Patent number 5,270,359
    • Issue date Dec 14, 1993
    • American Gilsonite Company
    • Enrique E. Romagosa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Uintaite-derived toners and printing inks
    • Patent number 5,229,441
    • Issue date Jul 20, 1993
    • American Gilsonite Company
    • Enrique E. Romagosa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY