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Lothar Brenner

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  • Munstereifel, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Two shaft vacuum pump with cantilevered rotors
    • Patent number 6,964,559
    • Issue date Nov 15, 2005
    • Leybold Vakuum GmbH
    • Manfred Behling
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Two-shaft vacuum pump
    • Patent number 6,863,511
    • Issue date Mar 8, 2005
    • Leybold Vakuum GmbH
    • Hartmut Kriehn
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Screw vacuum pump with a coolant circuit
    • Patent number 6,758,660
    • Issue date Jul 6, 2004
    • Leybold Vakuum GmbH
    • Hartmut Kriehn
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Method of operating a claw-type vacuum pump and a claw-type vacuum...
    • Patent number 5,660,535
    • Issue date Aug 26, 1997
    • Leybold Aktiengesellschaft
    • Andreas Kobus
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Muffler
    • Patent number 5,399,817
    • Issue date Mar 21, 1995
    • Leybold AG
    • Hanns-Peter Berges
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Dry-running twin-shaft vacuum pump
    • Patent number 5,364,245
    • Issue date Nov 15, 1994
    • Leybold Aktiengesellschaft
    • Hartmut Kriehn
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Device for supplying a multi-stage dry-running vacuum pump with ine...
    • Patent number 5,356,275
    • Issue date Oct 18, 1994
    • Leybold Aktiengesellschaft
    • Lothar Brenner
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Multi-stage vacuum pump with reaction chamber between stages
    • Patent number 5,131,825
    • Issue date Jul 21, 1992
    • Leybold Aktiengesellschaft
    • Paul Bachmann
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

  • Information Patent Application

    Two-shaft vacuum pump
    • Publication number 20040091380
    • Publication date May 13, 2004
    • Hartmut Kriehn
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Vacuum pump with two co-operating rotors
    • Publication number 20030152468
    • Publication date Aug 14, 2003
    • Manfred Behling
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Screw vacuum pump with a coolant circuit
    • Publication number 20030147764
    • Publication date Aug 7, 2003
    • Hartmut Kreihn
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...