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Douglas M. Kerchner

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  • Goodrich, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Diesel exhaust gas temperature reduction
    • Patent number 8,117,831
    • Issue date Feb 21, 2012
    • GM Global Technology Operations LLC
    • Thomas Stewart
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    Pig tail spring exhaust hanger
    • Patent number 8,109,475
    • Issue date Feb 7, 2012
    • GM Global Technology Operations LLC
    • Douglas M. Kerchner
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Exhaust system assemblies employing wire bushings for thermal compe...
    • Patent number 7,051,523
    • Issue date May 30, 2006
    • General Motors Corporation
    • Douglas M. Kerchner
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Gasket and heat shield assembly for a flanged joint
    • Patent number 7,048,201
    • Issue date May 23, 2006
    • General Motors Corporation
    • Douglas M. Kerchner
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Gasket and heat shield assembly for a flanged joint
    • Patent number 6,962,346
    • Issue date Nov 8, 2005
    • General Motors Corporation
    • Douglas M. Kerchner
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Gasket and heat shield for a flanged joint
    • Patent number 6,811,159
    • Issue date Nov 2, 2004
    • General Motors Corporation
    • Douglas M Kerchner
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    Pig Tail Spring Exhaust Hanger
    • Publication number 20110139943
    • Publication date Jun 16, 2011
    • GM Global Technology Operations, Inc.
    • Douglas M. Kerchner
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Diesel Exhaust Gas Temperature Reduction
    • Publication number 20090100826
    • Publication date Apr 23, 2009
    • GM Global Technology Operations, Inc.
    • Thomas Stewart
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Diesel Exhaust System Reversible Particulate Filter
    • Publication number 20070289293
    • Publication date Dec 20, 2007
    • GM Global Technology Operations, Inc.
    • Douglas M. Kerchner
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Exhaust system assemblies employing wire bushings for thermal compe...
    • Publication number 20050198946
    • Publication date Sep 15, 2005
    • Douglas M. Kerchner
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Gasket and heat shield assembly for a flanged joint
    • Publication number 20050166584
    • Publication date Aug 4, 2005
    • Douglas M. Kerchner
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Gasket and heat shield assembly for a flanged joint
    • Publication number 20040232625
    • Publication date Nov 25, 2004
    • Douglas M. Kerchner
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Gasket and heat shield for a flanged joint
    • Publication number 20030080519
    • Publication date May 1, 2003
    • Douglas M. Kerchner
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES