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Wolfgang Giebmanns

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  • Erfstadt, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Screw vacuum pump without internal cooling
    • Patent number 11,300,123
    • Issue date Apr 12, 2022
    • LEYBOLD GMBH
    • Thomas Dreifert
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vacuum pump screw rotors with symmetrical profiles on low pitch sec...
    • Patent number 11,293,435
    • Issue date Apr 5, 2022
    • LEYBOLD GMBH
    • Thomas Dreifert
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vacuum pump
    • Patent number 9,234,519
    • Issue date Jan 12, 2016
    • Oerlikon Leybold Vacuum GmbH
    • Thomas Dreifert
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vacuum pump in particular roots type pump
    • Patent number 8,740,578
    • Issue date Jun 3, 2014
    • Oerlikon Leybold Vacuum GmbH
    • Hannes Kamecke
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Screw-type vacuum pump having overpressure openings
    • Patent number 8,602,759
    • Issue date Dec 10, 2013
    • Oerlikon Leybold Vaccum GmbH
    • Peter Birch
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vacuum pump
    • Patent number 7,153,093
    • Issue date Dec 26, 2006
    • Leybold Vacuum GmbH
    • Thomas Dreifert
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

  • Information Patent Application

    VACUUM PUMP
    • Publication number 20230323879
    • Publication date Oct 12, 2023
    • Leybold GmbH
    • Dirk Schiller
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    DUAL OR MULTI-SHAFT VACUUM PUMP
    • Publication number 20210270270
    • Publication date Sep 2, 2021
    • Leybold GmbH
    • Dirk Schiller
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VACUUM-PUMP ROTOR
    • Publication number 20190264686
    • Publication date Aug 29, 2019
    • Leybold GmbH
    • Thomas DREIFERT
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VACUUM PUMP SCREW ROTOR
    • Publication number 20190211822
    • Publication date Jul 11, 2019
    • Leybold GmbH
    • Thomas DREIFERT
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SCREW-TYPE VACUUM PUMP
    • Publication number 20190203711
    • Publication date Jul 4, 2019
    • Leybold GmbH
    • Thomas DREIFERT
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    DRY-COMPRESSING VACUUM PUMP
    • Publication number 20190186493
    • Publication date Jun 20, 2019
    • Thomas Dreifert
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VACUUM PUMP
    • Publication number 20120315165
    • Publication date Dec 13, 2012
    • Thomas Dreifert
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VACUUM PUMP SYSTEM
    • Publication number 20120189478
    • Publication date Jul 26, 2012
    • Oerlikon Leybold Vacuum GmbH
    • Thomas Dreifert
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    SCREW-TYPE VACUUM PUMP
    • Publication number 20120039737
    • Publication date Feb 16, 2012
    • Peter Birch
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VACUUM PUMP HOUSING AND SET OF COOLING ELEMENTS FOR A VACCUM PUMP H...
    • Publication number 20120034110
    • Publication date Feb 9, 2012
    • Thomas Dreifert
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    VACUUM PUMP IN PARTICULAR ROOTS TYPE PUMP
    • Publication number 20110129374
    • Publication date Jun 2, 2011
    • OERLIKON LEYBOLD VACUUM GMBH
    • Hannes Kamecke
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Shaft Seal
    • Publication number 20090140495
    • Publication date Jun 4, 2009
    • OBERLIKON LEYBOLD VACUUM GMBH
    • Thomas Dreifert
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Vacuum Pump Impeller
    • Publication number 20070297907
    • Publication date Dec 27, 2007
    • Wolfgang Giebmanns
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Vacuum pump
    • Publication number 20050147517
    • Publication date Jul 7, 2005
    • Thomas Dreifert
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Screw vacuum pump comprising additional flow bodies
    • Publication number 20040067149
    • Publication date Apr 8, 2004
    • Wolfgang Giebmanns
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...