TREA

Ernest W. Downs

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  • Cincinnati, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Diffuser assembly
    • Patent number 6,464,211
    • Issue date Oct 15, 2002
    • United States Filter Corporation
    • Ernest W. Downs
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Dual diffuser assembly
    • Patent number 6,244,574
    • Issue date Jun 12, 2001
    • United States Filter Corporation
    • Ernest W. Downs
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Heat exchanger for aeration tank
    • Patent number 5,800,705
    • Issue date Sep 1, 1998
    • United States Filter Corporation
    • Ernest W. Downs
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Flexible diffuser assembly for aeration applications
    • Patent number 5,330,688
    • Issue date Jul 19, 1994
    • Enviroquip International, Inc.
    • Ernest W. Downs
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    U.V. resistant zinc coated PVC or related plastic pipe
    • Patent number 4,979,679
    • Issue date Dec 25, 1990
    • Ernest W. Downs
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Diffuser apparatus
    • Patent number 4,474,714
    • Issue date Oct 2, 1984
    • Endurex Corp.
    • Ernest W. Downs
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Diffuser assembly
    • Patent number 3,997,634
    • Issue date Dec 14, 1976
    • Ernest W. Downs
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE