TREA

Ray Rydman

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  • Freeland, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method for oxygenating wastewater
    • Patent number 7,294,278
    • Issue date Nov 13, 2007
    • Wayne State University
    • J. Richard Spears
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Apparatus for oxygenating wastewater
    • Patent number 7,008,535
    • Issue date Mar 7, 2006
    • Wayne State University
    • J. Richard Spears
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

  • Information Patent Application

    Method for oxygenating wastewater
    • Publication number 20060054554
    • Publication date Mar 16, 2006
    • J. Richard Spears
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL