TREA

mounted on pivot transverse to core axis

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  • CPC
  • E21B25/14
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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21BEARTH DRILLING E21B25/00Apparatus for obtaining or removing undisturbed cores

Current Industry

E21B25/14mounted on pivot transverse to core axis
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Method and apparatus for alternating between coring and drilling wi...
    • Patent number 11,891,858
    • Issue date Feb 6, 2024
    • COREALL AS
    • Per Erik Berger
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Piston corer and method of acquiring a soil sample
    • Patent number 10,859,472
    • Issue date Dec 8, 2020
    • Fugro Technology B.V.
    • Peter Nicolaas Looijen
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Float valve sub
    • Patent number 10,767,446
    • Issue date Sep 8, 2020
    • Japan Agency for Marine-Earth Science and Technology
    • Yuichi Shimmoto
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Coring tools including core sample flap catcher and related methods
    • Patent number 10,202,813
    • Issue date Feb 12, 2019
    • Baker Hughes Incorporated
    • Christoph Wesemeier
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Core holding system
    • Patent number 10,107,056
    • Issue date Oct 23, 2018
    • PetroChina Company Limited
    • Yapu Zhang
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Coring tools including core sample flap catcher and related methods
    • Patent number 9,856,709
    • Issue date Jan 2, 2018
    • Baker Hughes Incorporated
    • Christoph Wesemeier
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Full closure core catcher
    • Patent number 9,816,337
    • Issue date Nov 14, 2017
    • National-Oilwell Varco, L.P.
    • Jiri Zastresek
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Silty floating mud collection device
    • Patent number 9,784,649
    • Issue date Oct 10, 2017
    • CCC THIRD HARBOR CONSULTANTS CO., LTD.
    • Jianding Niu
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Apparatus for obtaining a soil core sample
    • Patent number 5,474,141
    • Issue date Dec 12, 1995
    • Ronald D. Hart
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Apparatus for obtaining a soil core sample
    • Patent number 5,322,133
    • Issue date Jun 21, 1994
    • Ronald D. Hart
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Shoe assembly with catcher for coring
    • Patent number 5,146,999
    • Issue date Sep 15, 1992
    • Baker Hughes Incorporated
    • Helma S. Wiser
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Coring tool
    • Patent number 4,930,587
    • Issue date Jun 5, 1990
    • Diamant Boart-Stratabit (USA) Inc.
    • David E. Young
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Manhole cutter
    • Patent number 4,924,951
    • Issue date May 15, 1990
    • Roger W. Paulson
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Retrieval device
    • Patent number 4,646,843
    • Issue date Mar 3, 1987
    • Cecil O. Vallally
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Self activating, positively driven concealed core catcher
    • Patent number 4,606,416
    • Issue date Aug 19, 1986
    • Norton Christensen, Inc.
    • Kelly Knighton
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Hydraulic lift inner barrel in a drill string coring tool
    • Patent number 4,553,613
    • Issue date Nov 19, 1985
    • Norton Christensen, Inc.
    • Steven R. Radford
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Junk basket and method of removing foreign material from a well
    • Patent number 4,059,155
    • Issue date Nov 22, 1977
    • International Enterprises, Inc.
    • Tom R. Greer
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3830320
    • Patent number 3,830,320
    • Issue date Aug 20, 1974
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3805900
    • Patent number 3,805,900
    • Issue date Apr 23, 1974
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3768580
    • Patent number 3,768,580
    • Issue date Oct 30, 1973
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3677355
    • Patent number 3,677,355
    • Issue date Jul 18, 1972
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3647009
    • Patent number 3,647,009
    • Issue date Mar 7, 1972
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3409094
    • Patent number 3,409,094
    • Issue date Nov 5, 1968
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3285354
    • Patent number 3,285,354
    • Issue date Nov 15, 1966
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3095050
    • Patent number 3,095,050
    • Issue date Jun 25, 1963
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2870838
    • Patent number 2,870,838
    • Issue date Jan 27, 1959
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    2698737
    • Patent number 2,698,737
    • Issue date Jan 4, 1955
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2471616
    • Patent number 2,471,616
    • Issue date May 31, 1949
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2230808
    • Patent number 2,230,808
    • Issue date Feb 4, 1941
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2221392
    • Patent number 2,221,392
    • Issue date Nov 12, 1940
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents