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Gregory D. Simpson

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  • Seabrook, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Composition for odor control
    • Patent number 7,972,532
    • Issue date Jul 5, 2011
    • Siemens Industry, Inc.
    • Gregory D. Simpson
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Systems and methods for wastewater odor control
    • Patent number 7,553,420
    • Issue date Jun 30, 2009
    • Siemens Water Technologies Corp.
    • Gregory D. Simpson
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Method for chlorite removal
    • Patent number 7,384,565
    • Issue date Jun 10, 2008
    • Siemens Water Technologies Corp.
    • Glenn W. Holden
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Removing odoriferous sulfides from wastewater
    • Patent number 7,285,217
    • Issue date Oct 23, 2007
    • Siemens Water Technologies Corp.
    • Gregory D. Simpson
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Method for destroying chlorite in solution
    • Patent number 6,440,314
    • Issue date Aug 27, 2002
    • Vulcan Chemical Technologies, Inc.
    • Gregory D. Simpson
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents