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Peter Hugh Birch

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  • West Sussex, GB
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    ROUGHING PUMP METHOD FOR A POSITIVE DISPLACEMENT PUMP
    • Publication number 20120063917
    • Publication date Mar 15, 2012
    • OERLIKON LEYBOLD VACUUM GMBH
    • Peter Birch
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VACUUM PUMP
    • Publication number 20110318210
    • Publication date Dec 29, 2011
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Vacuum pump
    • Publication number 20100158728
    • Publication date Jun 24, 2010
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VACUUM PUMP
    • Publication number 20100119399
    • Publication date May 13, 2010
    • EDWARDS LIMITED
    • Stephen Dowdeswell
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Method of Pumping Gas
    • Publication number 20090269231
    • Publication date Oct 29, 2009
    • EDWARDS LIMITED
    • Peter Hugh Birch
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Vacuum Pump
    • Publication number 20090214368
    • Publication date Aug 27, 2009
    • Nigel Paul Schofield
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Seal assemblies
    • Publication number 20060216186
    • Publication date Sep 28, 2006
    • Peter Hugh Birch
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...