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Joseph Liu

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  • Ramona, OK, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electric progressive cavity pump
    • Patent number 8,944,783
    • Issue date Feb 3, 2015
    • Schlumberger Technology Corporation
    • Joseph C. Liu
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Modular motor and housing
    • Patent number 6,794,788
    • Issue date Sep 21, 2004
    • Schlumberger Technology Corporation
    • Stephen D. Smith
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

  • Information Patent Application

    ELECTRIC PROGRESSIVE CAVITY PUMP
    • Publication number 20150110643
    • Publication date Apr 23, 2015
    • SCHLUMBERGER TECHNOLOGY CORPORATION
    • Joseph C. Liu
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    HIGH VOLTAGE MOTOR WINDINGS
    • Publication number 20100148623
    • Publication date Jun 17, 2010
    • SCHLUMBERGER TECHNOLOGY CORPORATION
    • Joseph Liu
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    SYSTEM AND METHOD FOR PROTECTING SUBMERSIBLE MOTOR WINDING
    • Publication number 20090058221
    • Publication date Mar 5, 2009
    • SCHLUMBERGER TECHNOLOGY CORPORATION
    • Joseph C. Liu
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Electric Progressive Cavity Pump
    • Publication number 20070295510
    • Publication date Dec 27, 2007
    • SCHLUMBERGER TECHNOLOGY CORPORATION
    • Joseph C. Liu
    • E21 - EARTH DRILLING MINING