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David R. Campbell

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  • Burlington, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Window frame profile
    • Patent number D739562
    • Issue date Sep 22, 2015
    • Royal Group, Inc.
    • David Robert Campbell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Window frame profile
    • Patent number D739044
    • Issue date Sep 15, 2015
    • Royal Group, Inc.
    • David Robert Campbell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Window frame profile
    • Patent number D739042
    • Issue date Sep 15, 2015
    • Royal Group, Inc.
    • David Robert Campbell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Window frame profile
    • Patent number D739045
    • Issue date Sep 15, 2015
    • Royal Group, Inc.
    • David Robert Campbell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Window frame profile
    • Patent number D739046
    • Issue date Sep 15, 2015
    • Royal Group, Inc.
    • David Robert Campbell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Window frame profile
    • Patent number D739043
    • Issue date Sep 15, 2015
    • Royal Group, Inc.
    • David Robert Campbell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Window frame profile
    • Patent number D735894
    • Issue date Aug 4, 2015
    • Royal Group, Inc.
    • David Robert Campbell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Window frame profile
    • Patent number D732706
    • Issue date Jun 23, 2015
    • Royal Group, Inc.
    • David Robert Campbell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Window frame profile
    • Patent number D732707
    • Issue date Jun 23, 2015
    • Royal Group, Inc.
    • David Robert Campbell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Window frame profile
    • Patent number D732203
    • Issue date Jun 16, 2015
    • Royal Group, Inc.
    • David Robert Campbell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Window frame profile
    • Patent number D732206
    • Issue date Jun 16, 2015
    • Royal Group, Inc.
    • David Robert Campbell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Window frame profile
    • Patent number D732205
    • Issue date Jun 16, 2015
    • Royal Group, Inc.
    • David Robert Campbell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Window frame profile
    • Patent number D732207
    • Issue date Jun 16, 2015
    • Royal Group, Inc.
    • David Robert Campbell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Window frame profile
    • Patent number D732204
    • Issue date Jun 16, 2015
    • Royal Group, Inc.
    • David Robert Campbell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Window frame profile
    • Patent number D727534
    • Issue date Apr 21, 2015
    • Royal Group, Inc.
    • David Robert Campbell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Window frame profile
    • Patent number D727537
    • Issue date Apr 21, 2015
    • Royal Group, Inc.
    • David Robert Campbell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Window frame profile
    • Patent number D727535
    • Issue date Apr 21, 2015
    • Royal Group, Inc.
    • David Robert Campbell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Window frame profile
    • Patent number D726939
    • Issue date Apr 14, 2015
    • Royal Group, Inc.
    • David Robert Campbell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Window frame profile
    • Patent number D726936
    • Issue date Apr 14, 2015
    • Royal Group, Inc.
    • David Robert Campbell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Window frame profile
    • Patent number D726938
    • Issue date Apr 14, 2015
    • Royal Group, Inc.
    • David Robert Campbell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Window frame profile
    • Patent number D726937
    • Issue date Apr 14, 2015
    • Royal Group, Inc.
    • David Robert Campbell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Process for refurbishing cylinder rolls and bases for printing mach...
    • Patent number 8,443,516
    • Issue date May 21, 2013
    • Garry Machine Mfg. Inc.
    • Raghbir Bhullar
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Window frame profile
    • Patent number D600361
    • Issue date Sep 15, 2009
    • Royal Group, Inc.
    • David Campbell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Window frame profile
    • Patent number D597219
    • Issue date Jul 28, 2009
    • Royal Group, Inc.
    • David Campbell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Window frame profile
    • Patent number D597220
    • Issue date Jul 28, 2009
    • Royal Group, Inc.
    • David Campbell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Window frame profile
    • Patent number D597221
    • Issue date Jul 28, 2009
    • Royal Group, Inc.
    • David Campbell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Window frame profile
    • Patent number D594570
    • Issue date Jun 16, 2009
    • Royal Group, Inc.
    • David Campbell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Window frame profile
    • Patent number D594565
    • Issue date Jun 16, 2009
    • Royal Group, Inc.
    • David Campbell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Window frame profile
    • Patent number D594567
    • Issue date Jun 16, 2009
    • Royal Group, Inc.
    • David Campbell
    • D25 - Building units and construction elements
  • Information Patent Grant

    Window frame profile
    • Patent number D594569
    • Issue date Jun 16, 2009
    • Royal Group, Inc.
    • David Campbell
    • D25 - Building units and construction elements

Patents Applicationslast 30 patents