TREA

David Chin

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  • Cypress, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Drill pipe system and method for using same
    • Patent number 9,388,648
    • Issue date Jul 12, 2016
    • National-Oilwell Varco, L.P.
    • David Chin
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Drill pipe system
    • Patent number 8,678,447
    • Issue date Mar 25, 2014
    • National-Oilwell Varco, L.P.
    • David Chin
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Patents Applicationslast 30 patents