TREA

Frank A. Williams

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  • Newnan, GA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Microbiological water filter
    • Patent number 6,957,743
    • Issue date Oct 25, 2005
    • Watervisions International, Inc.
    • Arthur W. Johnston
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Microbiological water filter
    • Patent number 6,187,192
    • Issue date Feb 13, 2001
    • Watervisions International, Inc.
    • Arthur W. Johnston
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Microbiological water filtering
    • Patent number 6,180,016
    • Issue date Jan 30, 2001
    • Watervisions International, Inc.
    • Arthur W. Johnston
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

  • Information Patent Application

    Formation of composite materials with expandable matter
    • Publication number 20040232068
    • Publication date Nov 25, 2004
    • Arthur W. Johnston
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Filter devices and methods of use
    • Publication number 20030173287
    • Publication date Sep 18, 2003
    • Arthur W Johnston
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Microbiological water filter
    • Publication number 20030015467
    • Publication date Jan 23, 2003
    • Arthur W. Johnston
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE