Darryl K. Mackie

Person

  • Houston, TX, US

Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    ELECTRIC BALL VALVE MECHANISM

    • Publication number 20220003070
    • Publication date Jan 6, 2022
    • Halliburton Energy Services, Inc.
    • Adam Davis Wright
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Annulus Access Valve

    • Publication number 20180355697
    • Publication date Dec 13, 2018
    • Halliburton Energy Services, Inc.
    • Darryl Kenneth Mackie
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Apparatus and Method for Separating a Tubular String from a Subsea...

    • Publication number 20110226482
    • Publication date Sep 22, 2011
    • Halliburton Energy Services, Inc.
    • Ross John Trewhella
    • E21 - EARTH DRILLING MINING