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Richard E. Schumaker

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  • Orange, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    RFID tag, antenna, and printer system
    • Patent number 7,261,479
    • Issue date Aug 28, 2007
    • Printronix
    • Gordon B. Barrus
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    RFID tag and printer system
    • Patent number 7,066,667
    • Issue date Jun 27, 2006
    • Printronix
    • Theodore A. Chapman
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    RFID tag, antenna, and printer system
    • Patent number 7,037,009
    • Issue date May 2, 2006
    • Printronix
    • Gordon B. Barrus
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    RFID tag, antenna, and printer system
    • Patent number 6,929,412
    • Issue date Aug 16, 2005
    • Printronix, Inc.
    • Gordon B. Barrus
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    RFID tag, antenna, and printer system
    • Patent number 6,899,476
    • Issue date May 31, 2005
    • Printronix, Inc.
    • Gordon B. Barrus
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Printer power supply
    • Patent number 5,595,446
    • Issue date Jan 21, 1997
    • Printronix, Inc.
    • Gordon Barrus
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents