TREA

Donald E. Zehner

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  • Etters, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Adjustable blade turbines
    • Patent number 6,402,477
    • Issue date Jun 11, 2002
    • Voith Siemens Hydro Power Generation, Inc.
    • Joseph M. Cybularz
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Adjustable blade turbines
    • Patent number 6,164,907
    • Issue date Dec 26, 2000
    • Voith Siemens Hydro Power Generation Inc.
    • Joseph M. Cybularz
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Adjustable blade turbines
    • Patent number 5,947,679
    • Issue date Sep 7, 1999
    • Voith Hydro, Inc.
    • Joseph M. Cybularz
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...