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Dirk Ehrenfeld

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  • Reutlingen, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Vane pump
    • Patent number 9,011,125
    • Issue date Apr 21, 2015
    • Joma-Polytec GmbH
    • Dirk Ehrenfeld
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vane cell pump with adjustable output
    • Patent number 8,210,836
    • Issue date Jul 3, 2012
    • Joma-Hydromechanic GmbH
    • Willi Schneider
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

  • Information Patent Application

    VANE PUMP
    • Publication number 20130216419
    • Publication date Aug 22, 2013
    • Dirk Ehrenfeld
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VANE PUMP
    • Publication number 20130022487
    • Publication date Jan 24, 2013
    • Joma-Polytec GmbH
    • Torsten Helle
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VANE CELL PUMP
    • Publication number 20070292291
    • Publication date Dec 20, 2007
    • Joma-Hydromechanic GmbH
    • Willi Schneider
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...