TREA

Philip E. DUFRENE

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  • Houma, LA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Centralizer
    • Patent number 11,085,248
    • Issue date Aug 10, 2021
    • Weatherford Technology Holdings, LLC
    • Maxime R. Rodrigue
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Low profile stop collar
    • Patent number 10,538,975
    • Issue date Jan 21, 2020
    • Weatherford Technology Holdings, LLC
    • Samuel Rodriguez
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Centralizer
    • Patent number 10,280,695
    • Issue date May 7, 2019
    • Weatherford Technology Holdings, LLC
    • Maxime R. Rodrigue
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

  • Information Patent Application

    CENTRALIZER
    • Publication number 20190323300
    • Publication date Oct 24, 2019
    • Weatherford Technology Holdings, LLC.
    • Maxime R. RODRIGUE
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    LOW PROFILE STOP COLLAR
    • Publication number 20180148982
    • Publication date May 31, 2018
    • Weatherford Technology Holdings, LLC.
    • Samuel RODRIGUEZ
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    CENTRALIZER
    • Publication number 20150376960
    • Publication date Dec 31, 2015
    • WEATHERFORD/LAMB, INC.
    • Maxime R. RODRIGUE
    • E21 - EARTH DRILLING MINING