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David Keller

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  • Seattle, WA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Nozzle distribution
    • Patent number 7,758,137
    • Issue date Jul 20, 2010
    • Hewlett-Packard Development Company, L.P.
    • David Keller
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Nozzle distribution
    • Patent number 7,249,815
    • Issue date Jul 31, 2007
    • Hewlett-Packard Development Company, L.P.
    • David Keller
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

  • Information Patent Application

    Nozzle distribution
    • Publication number 20070257952
    • Publication date Nov 8, 2007
    • David Keller
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    Nozzle distribution
    • Publication number 20050168506
    • Publication date Aug 4, 2005
    • David Keller
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS