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Robert D. Stephens

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  • Sterling Heights, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Activation of metal hydrides
    • Patent number 7,700,069
    • Issue date Apr 20, 2010
    • GM Global Technology Operations, Inc.
    • Robert D. Stephens
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    System for sono-catalytic production of hydrogen
    • Patent number 7,141,216
    • Issue date Nov 28, 2006
    • General Motors Corporation
    • Robert D Stephens
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...

Patents Applicationslast 30 patents

  • Information Patent Application

    ACTIVATION OF METAL HYDRIDES
    • Publication number 20090028782
    • Publication date Jan 29, 2009
    • GM Global Technology Operations, Inc.
    • Robert D. Stephens
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Sodium Alanate Hydrogen Storage Material
    • Publication number 20070178042
    • Publication date Aug 2, 2007
    • GM Global Technology Operations, Inc.
    • Terry A. Johnson
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    SYSTEM FOR SONO-CATALYTIC PRODUCTION OF HYDROGEN
    • Publication number 20070048563
    • Publication date Mar 1, 2007
    • GM Global Technology Operations, Inc.
    • ROBERT D. STEPHENS
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    System for sono-catalytic production of hydrogen
    • Publication number 20050048331
    • Publication date Mar 3, 2005
    • Robert D. Stephens
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL