TREA

William Christian Gates

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  • West Milton, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Discharge valve
    • Patent number 6,582,211
    • Issue date Jun 24, 2003
    • Copeland Corporation
    • Frank S. Wallis
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Discharge valve
    • Patent number 6,428,292
    • Issue date Aug 6, 2002
    • Copeland Corporation
    • Frank S. Wallis
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Discharge valve
    • Patent number 6,171,084
    • Issue date Jan 9, 2001
    • Copeland Corporation
    • Frank S. Wallis
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Laser hardened reed valve
    • Patent number 5,960,825
    • Issue date Oct 5, 1999
    • Copeland Corporation
    • Marc Joseph Scancarello
    • C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

  • Information Patent Application

    Discharge valve
    • Publication number 20020187062
    • Publication date Dec 12, 2002
    • Frank S. Wallis
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...