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ANDREW LEITCH

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  • Aberdeen, GB
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    DOWNHOLE APPARATUS AND METHOD
    • Publication number 20200173267
    • Publication date Jun 4, 2020
    • FORUM US, INC.
    • ANDREW LEITCH
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    DOWNHOLE APPARATUS AND METHOD
    • Publication number 20180266232
    • Publication date Sep 20, 2018
    • MULTILIFT WELLBORE TECHNOLOGY LIMITED
    • ANDREW LEITCH
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    DOWNHOLE APPARATUS AND METHOD
    • Publication number 20160341026
    • Publication date Nov 24, 2016
    • MULTILIFT WELLBORE TECHNOLOGY LIMITED
    • ANDREW LEITCH
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    FREE FLOW VALVE
    • Publication number 20140284061
    • Publication date Sep 25, 2014
    • MULTILIFT WELLBORE TECHNOLOGY LIMITED
    • ANDREW J. LEITCH
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    DOWNHOLE APPARATUS AND METHOD
    • Publication number 20140014358
    • Publication date Jan 16, 2014
    • ENIGMA OILFIELD PRODUCTS LIMITED
    • Andrew Leitch
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    COMPLETION TOOL
    • Publication number 20090200034
    • Publication date Aug 13, 2009
    • PUMP TOOLS LIMITED
    • Andrew Leitch
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    APPARATUS AND METHOD
    • Publication number 20090183870
    • Publication date Jul 23, 2009
    • Pump Tools Limited
    • Andrew Leitch
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    APPARATUS AND METHOD
    • Publication number 20080041477
    • Publication date Feb 21, 2008
    • PUMP TOOLS LIMITED
    • Paul Shotter
    • E21 - EARTH DRILLING MINING