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David GRONNING

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  • Edmonton, CA
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    BALL VALVE CAGE ASSEMBLY FOR RECIPROCATING DOWNHOLE PUMP
    • Publication number 20190032446
    • Publication date Jan 31, 2019
    • GLOBAL OIL AND GAS SUPPLIES INC.
    • David GRONNING
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    ROD ROTATOR
    • Publication number 20170219073
    • Publication date Aug 3, 2017
    • GLOBAL OIL AND GAS SUPPLIES INC.
    • David GRONNING
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    BACKFLUSH VALVE
    • Publication number 20170145786
    • Publication date May 25, 2017
    • GLOBAL OIL AND GAS SUPPLIES INC.
    • David GRONNING
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    DOWNHOLE PUMP SEATING NIPPLE WITH PERFORATIONS
    • Publication number 20160130921
    • Publication date May 12, 2016
    • GLOBAL OIL AND GAS SUPPLIES INC.
    • David GRONNING
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    DOWNHOLE TOOL FOR OPENING A TRAVELLING VALVE ASSEMBLY OF A RECIPROC...
    • Publication number 20150107823
    • Publication date Apr 23, 2015
    • GLOBAL OIL AND GAS SUPPLIES INC.
    • David GRONNING
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    TRAVELING VALVE CAGE
    • Publication number 20150075637
    • Publication date Mar 19, 2015
    • GLOBAL OIL AND GAS SUPPLIES INC.
    • David GRONNING
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...