TREA

Martin D Hallett

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  • Port Edwards, WI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Hydro vortex enabled turbine generator
    • Patent number 9,322,385
    • Issue date Apr 26, 2016
    • Martin D. Hallett
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Vortex hydro turbine
    • Patent number 8,376,699
    • Issue date Feb 19, 2013
    • Martin D Hallett
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...