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Helmut K. Waibel

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  • Hayward, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Impact printer platen support
    • Patent number 4,936,697
    • Issue date Jun 26, 1990
    • Xerox Corporation
    • Ivor Weller
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Impact mechanism for impact printer
    • Patent number 4,874,265
    • Issue date Oct 17, 1989
    • Xerox Corporation
    • Helmut K. Waibel
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Impact mechanism for impact printer
    • Patent number 4,859,096
    • Issue date Aug 22, 1989
    • Xerox Corporation
    • Helmut K. Waibel
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Printer feeder
    • Patent number 4,498,794
    • Issue date Feb 12, 1985
    • Durango Systems, Inc.
    • Helmut K. Waibel
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Print drive medium for line/series printers
    • Patent number 4,417,825
    • Issue date Nov 29, 1983
    • Durango Systems, Inc.
    • James E. Cushman
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Printing ribbon cartridge
    • Patent number 4,388,006
    • Issue date Jun 14, 1983
    • Durango Systems, Inc.
    • Helmut K. Waibel
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Print head carriage assembly for serial printers
    • Patent number 4,222,673
    • Issue date Sep 16, 1980
    • Durango Systems, Inc.
    • Mario G. Plaza
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS