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Jonald R. Gradwohl

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  • Corvallis, OR, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Wind driven power generator
    • Patent number 8,011,876
    • Issue date Sep 6, 2011
    • Donald R. Gradwohl
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Fuel-cell element stack with stress relief and methods
    • Patent number 7,063,909
    • Issue date Jun 20, 2006
    • Hewlett-Packard Development Company, L.P.
    • David Champion
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...

Patents Applicationslast 30 patents

  • Information Patent Application

    Wind driven power generator
    • Publication number 20080101932
    • Publication date May 1, 2008
    • Donald R. Gradwohl
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Fuel-cell element stack with stress relief and methods
    • Publication number 20040033404
    • Publication date Feb 19, 2004
    • David Champion
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...