TREA

David Gilbert

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  • Arlington, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Sports implement
    • Patent number 6,485,380
    • Issue date Nov 26, 2002
    • Active Control eXperts, Inc.
    • Ronald Spangler
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Golf club
    • Patent number 6,196,935
    • Issue date Mar 6, 2001
    • Active Control eXperts, Inc.
    • Ronald Spangler
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Baseball hat
    • Patent number 6,086,490
    • Issue date Jul 11, 2000
    • Active Control eXperts, Inc.
    • Ronald Spangler
    • A63 - SPORTS GAMES AMUSEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    Sports implement
    • Publication number 20010001770
    • Publication date May 24, 2001
    • Ronald Spangler
    • A63 - SPORTS GAMES AMUSEMENTS