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Dieter-Martin Kolvenbach

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  • Cologne, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Vacuum pump having a silencer
    • Patent number 11,274,668
    • Issue date Mar 15, 2022
    • LEYBOLD GMBH
    • Dieter Kolvenbach
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Multi-stage rotary lobe pump
    • Patent number 11,255,328
    • Issue date Feb 22, 2022
    • LEYBOLD GMBH
    • Dieter Kolvenbach
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Blower or pump with capillary filter for replenishment of oil separ...
    • Patent number 5,114,320
    • Issue date May 19, 1992
    • Leybold AG
    • Hans-Peter Kabelitz
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

  • Information Patent Application

    VACUUM PUMP HAVING A SILENCER
    • Publication number 20220128055
    • Publication date Apr 28, 2022
    • Leybold GmbH
    • Dieter Kolvenbach
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    MULTI-STAGE ROTARY LOBE PUMP
    • Publication number 20190376515
    • Publication date Dec 12, 2019
    • Leybold GmbH
    • Dieter Kolvenbach
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VACUUM PUMP HAVING A SILENCER
    • Publication number 20190113036
    • Publication date Apr 18, 2019
    • Leybold GmbH
    • Dieter Kolvenbach
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...