TREA

Donald F. Manchester

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  • Oakville, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Microbial culture system
    • Patent number 4,559,305
    • Issue date Dec 17, 1985
    • Abitibi Paper Company Ltd.
    • James E. Zajic
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Foam flotation activated sludge process
    • Patent number 4,211,645
    • Issue date Jul 8, 1980
    • Abitibi Paper Company Ltd.
    • James E. Zajic
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE