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Norwood R. Harrell

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  • Dewey, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Impeller for centrifugal pump
    • Patent number 7,549,837
    • Issue date Jun 23, 2009
    • Schlumberger Technology Corporation
    • Matthew Hackworth
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

  • Information Patent Application

    Impeller for centrifugal pump
    • Publication number 20080101921
    • Publication date May 1, 2008
    • SCHLUMBERGER TECHNOLOGY CORPORATION
    • Matthew Hackworth
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...