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Christian Barckhahn

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  • Saint Cugat del Valles, ES
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Patents Grantslast 30 patents

  • Information Patent Grant

    Printer device and method
    • Patent number 6,863,372
    • Issue date Mar 8, 2005
    • Hewlett-Packard Development Company, L.P.
    • Christian Barckhahn
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Printer device and method
    • Patent number 6,655,782
    • Issue date Dec 2, 2003
    • Hewlett-Packard Development Company, L.P.
    • Christian Barckhahn
    • G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

  • Information Patent Application

    Printer device and method
    • Publication number 20050140708
    • Publication date Jun 30, 2005
    • Christian Barckhahn
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    Printer device and method
    • Publication number 20040027401
    • Publication date Feb 12, 2004
    • Christian Barckhahn
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    Printer device and method
    • Publication number 20030081026
    • Publication date May 1, 2003
    • Christian Barckhahn
    • G06 - COMPUTING CALCULATING COUNTING