TREA

Christopher P. Thissen

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  • Austin, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rotary biological contactor
    • Patent number 4,537,678
    • Issue date Aug 27, 1985
    • Walker Process Corporation
    • Christopher P. Thissen
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Water treatment apparatus
    • Patent number 4,522,714
    • Issue date Jun 11, 1985
    • Walker Process Corporation
    • Christopher P. Thissen
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Machine for heat sealing polymeric sheets into a spiral drum
    • Patent number 4,319,949
    • Issue date Mar 16, 1982
    • Walker Process Corporation
    • Christopher P. Thissen
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Apparatus for vacuum thermoforming polymeric sheet material
    • Patent number 4,284,396
    • Issue date Aug 18, 1981
    • Walker Process Corporation
    • Christopher P. Thissen
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Waste water treatment rotor
    • Patent number 4,115,268
    • Issue date Sep 19, 1978
    • Christopher P. Thissen
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Apparatus for making biological discs
    • Patent number 4,083,746
    • Issue date Apr 11, 1978
    • Geo. A. Hormel & Co.
    • Christopher P. Thissen
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Apparatus for biological treatment of waste water
    • Patent number 3,997,443
    • Issue date Dec 14, 1976
    • Geo. A. Hormel & Co.
    • Christopher Thissen
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE