TREA

Water Pollution Control Corporation

Follow

Organization

  • Milwaukee, WI, US
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Diffuser conduit joint
    • Patent number 5,714,062
    • Issue date Feb 3, 1998
    • Water Pollution Control Corporation
    • William W. Winkler
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Direct delivery in-situ diffuser cleaning
    • Patent number 5,597,491
    • Issue date Jan 28, 1997
    • Water Pollution Control Corporation
    • William W. Winkler
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Direct delivery in-situ diffuser cleaning
    • Patent number 5,378,355
    • Issue date Jan 3, 1995
    • Water Pollution Control Corporation
    • William W. Winkler
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Apparatus for in place gas cleaning of diffusion elements
    • Patent number 5,328,601
    • Issue date Jul 12, 1994
    • Water Pollution Control Corporation
    • Frank L. Schmidt
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    In place gas cleaning of diffusion elements
    • Patent number RE33177
    • Issue date Mar 6, 1990
    • Water Pollution Control Corporation
    • Frank L. Schmit
    • 210 - Liquid purification or separation
  • Information Patent Grant

    In place gas cleaning of diffusion elements
    • Patent number 4,889,620
    • Issue date Dec 26, 1989
    • Water Pollution Control Corporation
    • Frank L. Schmit
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Ring channel aeration apparatus and method
    • Patent number 4,451,373
    • Issue date May 29, 1984
    • Water Pollution Control Corp.
    • Paul M. Thayer
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Swing diffuser
    • Patent number 4,294,696
    • Issue date Oct 13, 1981
    • Water Pollution Control Corporation
    • Paul M. Thayer
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Sewage aeration system
    • Patent number 4,288,394
    • Issue date Sep 8, 1981
    • Water Pollution Control Corp.
    • Lloyd Ewing
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Diffusion element with boundary zone treatment
    • Patent number 4,288,395
    • Issue date Sep 8, 1981
    • Water Pollution Control Corporation
    • Lloyd Ewing
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Diffusion element with boundary zone treatment
    • Patent number 4,261,932
    • Issue date Apr 14, 1981
    • Water Pollution Control Corporation
    • Lloyd Ewing
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Diffusion element
    • Patent number 4,261,933
    • Issue date Apr 14, 1981
    • Water Pollution Control Corporation
    • Lloyd Ewing
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Microscreen method and apparatus
    • Patent number 4,198,299
    • Issue date Apr 15, 1980
    • Water Pollution Control Corporation
    • Lloyd Ewing
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Sewage treatment aeration systems
    • Patent number 4,012,470
    • Issue date Mar 15, 1977
    • Water Pollution Control Corporation
    • Paul M. Thayer
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Filtration method
    • Patent number 3,979,289
    • Issue date Sep 7, 1976
    • Water Pollution Control Corporation
    • Michael J. Bykowski
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Sewage treatment aeration systems
    • Patent number 3,953,553
    • Issue date Apr 27, 1976
    • Water Pollution Control Corporation
    • Paul M. Thayer
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Trademarklast 30 trademarks

  • Information Trademark

    74147483
    • Serial number 74147483
    • Registration number 1709891
    • Filing date Mar 14, 1991
    • WATER POLLUTION CONTROL CORPORATION
    • 11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes
  • Information Trademark

    73818470 - S SANITAIRE
    • Serial number 73818470
    • Registration number 1623504
    • Filing date Aug 10, 1989
    • WATER POLLUTION CONTROL CORPORATION
    • 11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes
  • Information Trademark

    73811968 - SANITAIRE
    • Serial number 73811968
    • Registration number 1621061
    • Filing date Jul 11, 1989
    • WATER POLLUTION CONTROL CORPORATION
    • 11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes