TREA

Robert J. Lepofsky

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  • Mansfield, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electronically controlled vacuum pump
    • Patent number 7,413,411
    • Issue date Aug 19, 2008
    • Brooks Automation, Inc.
    • Peter W. Gaudet
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Electronically controlled vacuum pump
    • Patent number 6,902,378
    • Issue date Jun 7, 2005
    • Helix Technology Corporation
    • Peter W. Gaudet
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Cryopump system with modular electronics
    • Patent number 6,474,080
    • Issue date Nov 5, 2002
    • Helix Technology Corporation
    • John J. Varone
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Electronically controlled vacuum pump
    • Patent number 6,461,113
    • Issue date Oct 8, 2002
    • Helix Technology Corporation
    • Peter W. Gaudet
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Cryopump system with modular electronics
    • Patent number 6,318,091
    • Issue date Nov 20, 2001
    • Helix Technology Corporation
    • John J. Varone
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Electronically controlled vacuum pump with control module
    • Patent number 6,022,195
    • Issue date Feb 8, 2000
    • Helix Technology Corporation
    • Peter W. Gaudet
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Turbomolecular pump with valves and integrated electronic controls
    • Patent number 5,443,368
    • Issue date Aug 22, 1995
    • Helix Technology Corporation
    • Alan L. Weeks
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Electronically controlled cryopump
    • Patent number 5,157,928
    • Issue date Oct 27, 1992
    • Helix Technology Corporation
    • Peter W. Gaudet
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Electronically controlled cryopump
    • Patent number 4,918,930
    • Issue date Apr 24, 1990
    • Helix Technology Corporation
    • Peter W. Gaudet
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Means for periodic desorption of a cryopump
    • Patent number 4,910,965
    • Issue date Mar 27, 1990
    • Helix Technology Corporation
    • Robert J. Lepofsky
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

  • Information Patent Application

    Electronically Controlled Vacuum Pump
    • Publication number 20080267790
    • Publication date Oct 30, 2008
    • Peter W. Gaudet
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Electronically controlled vacuum pump
    • Publication number 20050196284
    • Publication date Sep 8, 2005
    • Helix Technology Corporation
    • Peter W. Gaudet
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Electronically controlled vacuum pump
    • Publication number 20020094277
    • Publication date Jul 18, 2002
    • Helix Technology Corporation
    • Peter W. Gaudet
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Cryopump system with modular electronics
    • Publication number 20020023440
    • Publication date Feb 28, 2002
    • Helix Technology Corporation Mansfield, Massachusetts
    • John J. Varone
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL