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David W. Blanchette

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  • Southington, CT, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pool chemical tablet
    • Patent number 7,820,198
    • Issue date Oct 26, 2010
    • Arch Chemicals, Inc.
    • David W. Blanchette
    • C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
  • Information Patent Grant

    Chemical feeder
    • Patent number 7,143,778
    • Issue date Dec 5, 2006
    • Arch Chemicals, Inc.
    • David W. Blanchette
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Chemical feeder
    • Patent number 6,915,811
    • Issue date Jul 12, 2005
    • Arch Chemicals, Inc.
    • David W. Blanchette
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Chemical feeder
    • Patent number 6,497,822
    • Issue date Dec 24, 2002
    • Arch Chemicals, Inc.
    • David W. Blanchette
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Intermittant spray system for water treatment
    • Patent number 5,928,608
    • Issue date Jul 27, 1999
    • Arch Chemicals Inc.
    • Kenneth John Levesque
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

  • Information Patent Application

    Pool chemical tablet
    • Publication number 20060081810
    • Publication date Apr 20, 2006
    • David W. Blanchette
    • C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
  • Information Patent Application

    Chemical feeder
    • Publication number 20050145277
    • Publication date Jul 7, 2005
    • Arch Chemicals, Inc., a corporation of the State of Connecticut
    • David W. Blanchette
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Chemical feeder
    • Publication number 20030116592
    • Publication date Jun 26, 2003
    • David W. Blanchette
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Chemical feeder
    • Publication number 20020011436
    • Publication date Jan 31, 2002
    • David W. Blanchette
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL