TREA

with a spring or an additional weight

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Industry

  • CPC
  • E21B19/089
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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21BEARTH DRILLING E21B19/00Handling rods, casings, tubes or the like outside the borehole

Current Industry

E21B19/089with a spring or an additional weight
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Counterbalance systems and related methods for catwalk systems
    • Patent number 12,158,045
    • Issue date Dec 3, 2024
    • FORUM US, INC.
    • Gerardo Guerra
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Compensating rig elevator
    • Patent number 11,905,768
    • Issue date Feb 20, 2024
    • Spoked Solutions, LLC
    • Shane Triche
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Pump jack with counterbalance
    • Patent number 11,299,941
    • Issue date Apr 12, 2022
    • Vertx Artificial Lift Inc.
    • Nicholas Paul Donohoe
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Compensating rig elevator
    • Patent number 10,689,923
    • Issue date Jun 23, 2020
    • Cajun Services Unlimited, LLC
    • Shane Triche
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Pipe connection system
    • Patent number 8,281,867
    • Issue date Oct 9, 2012
    • National-Oilwell Varco, L.P.
    • Jaroslav Belik
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Seabed analysis
    • Patent number 6,526,818
    • Issue date Mar 4, 2003
    • XL Technology Limited
    • Philip Head
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Method of operating an earth boring machine
    • Patent number 5,289,887
    • Issue date Mar 1, 1994
    • Tracto-Technik Paul Schmidt Spezialmaschinen KG
    • Franz-Josef Puttmann
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    2889723
    • Patent number 2,889,723
    • Issue date Jun 9, 1959
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    2874934
    • Patent number 2,874,934
    • Issue date Feb 24, 1959
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1569000
    • Patent number 1,569,000
    • Issue date Jan 12, 1926
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1374996
    • Patent number 1,374,996
    • Issue date Apr 19, 1921
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents