TREA

Joe D. Walk

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  • Homewood, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Process for the purification of water
    • Patent number 4,274,968
    • Issue date Jun 23, 1981
    • Standard Oil Company (Indiana)
    • James F. Grutsch
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Waste water process for treatment of strong wastes
    • Patent number 4,172,781
    • Issue date Oct 30, 1979
    • Standard Oil Company (Indiana)
    • Joe D. Walk
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Waste water purification
    • Patent number 4,168,228
    • Issue date Sep 18, 1979
    • Standard Oil Company of Indiana
    • Russell C. Mallatt
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE