TREA

Theodore Lee Cottrell

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  • Keller, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Differential safety valve
    • Patent number 10,100,605
    • Issue date Oct 16, 2018
    • Pioneer Natural Resources USA, Inc.
    • Michael Glenn Gay
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

  • Information Patent Application

    DIFFERENTIAL SAFETY VALVE
    • Publication number 20190120013
    • Publication date Apr 25, 2019
    • Pioneer Natural Resources USA, Inc.
    • Michael Glenn Gay
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    DIFFERENTIAL SAFETY VALVE
    • Publication number 20150204162
    • Publication date Jul 23, 2015
    • Pioneer Natural Resources USA, Inc.
    • Michael Glenn Gay
    • E21 - EARTH DRILLING MINING