TREA

Darrell W. Mitchum

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  • Oakhurst, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Well plunger systems
    • Patent number 10,907,452
    • Issue date Feb 2, 2021
    • Patriot Artificial Lift, LLC
    • Robert G. Roycroft
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Forged flange lubricator
    • Patent number 10,718,327
    • Issue date Jul 21, 2020
    • Patriot Artificial Lift, LLC
    • Robert Roycroft
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Forged flange lubricator
    • Patent number 10,221,849
    • Issue date Mar 5, 2019
    • Patriot Artificial Lift, LLC
    • Robert Roycroft
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Well plunger systems
    • Patent number 10,161,230
    • Issue date Dec 25, 2018
    • Patriot Artificial Lift, LLC
    • Robert G. Roycroft
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

  • Information Patent Application

    CATCHER ASSEMBLY FOR A PLUNGER
    • Publication number 20240159129
    • Publication date May 16, 2024
    • Flowco Production Solutions, LLC
    • Garrett S. Boyd
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    FORGED FLANGE LUBRICATOR
    • Publication number 20190145404
    • Publication date May 16, 2019
    • Patriot Artificial Lift, LLC
    • Robert Roycroft
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    WELL PLUNGER SYSTEMS
    • Publication number 20190085666
    • Publication date Mar 21, 2019
    • Patriot Artificial Lift, LLC
    • Robert G. Roycroft
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    WELL PLUNGER SYSTEMS
    • Publication number 20170268318
    • Publication date Sep 21, 2017
    • Patriot Artificial Lift, LLC
    • Robert G. Roycroft
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    FORGED FLANGE LUBRICATOR
    • Publication number 20160341195
    • Publication date Nov 24, 2016
    • Patriot Artificial Lift, LLC
    • Robert Roycroft
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    BYPASS DART AND ASSEMBLY
    • Publication number 20160215600
    • Publication date Jul 28, 2016
    • Patriot Artificial Lift, LLC
    • Robert G. Roycroft
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    BYPASS DART AND ASSEMBLY
    • Publication number 20160168963
    • Publication date Jun 16, 2016
    • Patriot Artificial Lift, LLC
    • Robert G. Roycroft
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    BUMPER ASSEMBLY HAVING PROGRESSIVE RATE SPRING
    • Publication number 20160017700
    • Publication date Jan 21, 2016
    • Patriot Artificial Lift, LLC
    • Robert G. Roycroft
    • E21 - EARTH DRILLING MINING