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Hartmuth Drews

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  • Pinneberg, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Water wheel for generating power
    • Patent number 8,593,005
    • Issue date Nov 26, 2013
    • Hartmuth Drews
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Water wheel comprising a built-in generator
    • Patent number 8,421,261
    • Issue date Apr 16, 2013
    • Hartmuth Drews
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...

Patents Applicationslast 30 patents

  • Information Patent Application

    Water Wheel for Generating Power
    • Publication number 20120262036
    • Publication date Oct 18, 2012
    • Hartmuth Drews
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Water Wheel Comprising a Built-In Generator
    • Publication number 20110042957
    • Publication date Feb 24, 2011
    • Hartmuth Drews
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...