TREA

David Wasmer

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  • Newton, WI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Fountain aerator with flow straightener
    • Patent number 6,805,299
    • Issue date Oct 19, 2004
    • Nigrelli Systems, Inc.
    • David E. Wasmer
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Aeration apparatus for pond
    • Patent number 5,011,372
    • Issue date Apr 30, 1991
    • Nigrelli Systems, Inc.
    • Nicholas B. Nigrelli
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Aeration apparatus and method
    • Patent number 4,981,622
    • Issue date Jan 1, 1991
    • Nigrelli Systems, Inc.
    • Nicholas B. Nigrelli
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL