TREA

Christopher Colwell

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  • Mansfield, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Valve positioner system
    • Patent number 6,745,084
    • Issue date Jun 1, 2004
    • Dresser, Inc.
    • Henry Boger
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Valve positioner system
    • Patent number 6,453,261
    • Issue date Sep 17, 2002
    • Dresser, Inc.
    • Henry Boger
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Valve positioner system
    • Patent number 6,272,401
    • Issue date Aug 7, 2001
    • Dresser Industries, Inc.
    • Henry Boger
    • G05 - CONTROLLING REGULATING

Patents Applicationslast 30 patents

  • Information Patent Application

    Valve positioner system
    • Publication number 20010037670
    • Publication date Nov 8, 2001
    • Henry Boger
    • G05 - CONTROLLING REGULATING
  • Information Patent Application

    Valve positioner system
    • Publication number 20010037159
    • Publication date Nov 1, 2001
    • Henry Boger
    • G05 - CONTROLLING REGULATING
  • Information Patent Application

    Valve positioner system
    • Publication number 20010032518
    • Publication date Oct 25, 2001
    • Henry Boger
    • G05 - CONTROLLING REGULATING