TREA

Douglas Craig Pfantz

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  • Melbourne, IA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    No-bleed pilot for pressure regulating valve
    • Patent number 6,371,156
    • Issue date Apr 16, 2002
    • Fisher Controls International, Inc.
    • Herbert H. Walton
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Elastomeric element valve
    • Patent number 6,102,071
    • Issue date Aug 15, 2000
    • Fisher Controls International, Inc.
    • Herbert H. Walton
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Elastomeric element valve
    • Patent number 5,964,446
    • Issue date Oct 12, 1999
    • Fisher Controls International, Inc.
    • Herbert H. Walton
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Regulator valve with diaphragm support
    • Patent number 5,271,601
    • Issue date Dec 21, 1993
    • Fisher Controls International, Inc.
    • William J. Bonzer
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents