TREA

Thomas Dunn

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  • Avon, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pressure relief valve and cryopump utilizing the same
    • Patent number 5,137,050
    • Issue date Aug 11, 1992
    • Helix Technology Corporation
    • Hans T. Clarke
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Optimally staged cryopump
    • Patent number 5,001,903
    • Issue date Mar 26, 1991
    • Helix Technology Corporation
    • Philip A. Lessard
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Optimally staged cryopump
    • Patent number 4,896,511
    • Issue date Jan 30, 1990
    • Philip A. Lessard
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...