characterised by conduits or nozzles for drilling fluids

Industry

  • CPC
  • E21B10/38
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    Full-hole reverse circulation cluster-type down-the-hole (DTH) hamm...

    • Publication number 20240167341
    • Publication date May 23, 2024
    • Haozhou Drilling Engineering Machinery (Shandong) Co., Ltd.
    • Yechen ZHAO
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    BOTTOM-HOLE IMPACT-ROTATION STEPPING COMBINED UNLOADING ROCK-BREAKI...

    • Publication number 20240084646
    • Publication date Mar 14, 2024
    • CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
    • Yongwang LIU
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    METHOD AND APPARATUS FOR REMOVING DEBRIS FROM A DRILL HOLE DURING D...

    • Publication number 20240060371
    • Publication date Feb 22, 2024
    • L. Curtis Beaton
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    CARVED OUT DRILL BIT

    • Publication number 20240011355
    • Publication date Jan 11, 2024
    • SANDVIK MINING AND CONSTRUTION TOOLS AB
    • John HAMMARGREN
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    DRILLING BIT

    • Publication number 20230392448
    • Publication date Dec 7, 2023
    • MMC RYOTEC CORPORATION
    • Hiroshi Ota
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    DRILL BIT

    • Publication number 20220268104
    • Publication date Aug 25, 2022
    • SANDVIK MINING AND CONSTRUCTION TOOLS AB
    • John HAMMARGREN
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    DOWN-THE-HOLE HAMMER DRILL BIT ASSEMBLY

    • Publication number 20220081974
    • Publication date Mar 17, 2022
    • SANDVIK MINING AND CONSTRUCTION OY
    • Olivier BRUANDET
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    ROCK DRILL BIT FOR PERCUSSIVE DRILLING

    • Publication number 20220065047
    • Publication date Mar 3, 2022
    • SANDVIK MINING AND CONSTRUCTION OY
    • Olivier BRUANDET
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    RAM ACCELERATOR AUGMENTED DRILLING SYSTEM

    • Publication number 20220056763
    • Publication date Feb 24, 2022
    • HYPERSCIENCES, INC.
    • MARK C. RUSSELL
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    FLUSHING SYSTEM IN DRILL BITS

    • Publication number 20210262294
    • Publication date Aug 26, 2021
    • Caterpillar Global Mining Equipment LLC
    • Koushik Kabiraj
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    DRILL BIT WITH CURVED SLUDGE GROOVES

    • Publication number 20210238927
    • Publication date Aug 5, 2021
    • John HAMMARGREN
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    DRILL BIT WITH WEAR SHIELD

    • Publication number 20210189804
    • Publication date Jun 24, 2021
    • ELEMENT SIX GMBH
    • BERND HEINRICH RIES
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    THREADED COUPLING FOR PERCUSSION DRILL BIT

    • Publication number 20200248510
    • Publication date Aug 6, 2020
    • Hardrock Innovations Inc.
    • James Jing Yao
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    DOWN THE HOLE DRILLING MACHINE AND METHOD FOR DRILLING ROCK

    • Publication number 20200190906
    • Publication date Jun 18, 2020
    • Sandvik Intellectual Property AB
    • Olivier BRUANDET
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    A DRILL BIT FOR PERCUSSIVE DRILLING, A DRILL BIT ASSEMBLY, AND A ME...

    • Publication number 20200011136
    • Publication date Jan 9, 2020
    • ROBIT OYJ
    • Pasi KORTE
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    BIDIRECTIONAL CLUSTER HAMMER REAMER

    • Publication number 20190301246
    • Publication date Oct 3, 2019
    • HARD ROCK HORIZONTAL DIRECTIONAL DRILLING PRODUCTS , INC.
    • Cary Cooper
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    DRILL BIT

    • Publication number 20190277094
    • Publication date Sep 12, 2019
    • TMT - TAPPING MEASURING TECHNOLOGY SARL
    • Romain Clesen
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    DOWN-THE-HOLE DRILL HAMMER HAVING A ROLLER BEARING ASSEMBLY

    • Publication number 20180171720
    • Publication date Jun 21, 2018
    • CENTER ROCK INC.
    • Leland H. Lyon
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    TORSION IMPACT SPEED ACCELERATION DEVICE

    • Publication number 20180171717
    • Publication date Jun 21, 2018
    • CNPC Xibu Drilling Engineering Company Limited
    • Ruoming CHEN
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Steerable Downhole Hammer Bit

    • Publication number 20180155985
    • Publication date Jun 7, 2018
    • Earth Tool Company LLC
    • Steven W. Wentworth
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Drill Rod

    • Publication number 20180100356
    • Publication date Apr 12, 2018
    • Padley & Venables Limited
    • William Jason Strecker
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    DRILL BIT FOR IMPROVED TRANSPORT OF CUTTINGS

    • Publication number 20180066477
    • Publication date Mar 8, 2018
    • Sandvik Intellectual Property AB
    • Rasmus HEMPH
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    DUAL CIRCULATION FLUID HAMMER DRILLING SYSTEM

    • Publication number 20180044991
    • Publication date Feb 15, 2018
    • Strada Design Limited
    • Ian Speer
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    DRILL BIT FOR PULLING MATERIAL THROUGH PILOT-CHANNEL

    • Publication number 20170342777
    • Publication date Nov 30, 2017
    • CARY COOPER
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    DRILL BIT WITH RECESSED CUTTING FACE

    • Publication number 20170268295
    • Publication date Sep 21, 2017
    • Sandvik Intellectual Property AB
    • Andreas RINDESKÄR
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    INSTRUMENTED PERCUSSION HAMMER BIT

    • Publication number 20160362938
    • Publication date Dec 15, 2016
    • Smith International, Inc.
    • Xiaoge Gan
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    PERCUSSIVE ROCK DRILL BIT WITH FLUSHING GROOVES

    • Publication number 20160348442
    • Publication date Dec 1, 2016
    • Sandvik Intellectual Property AB
    • Andreas Rindeskar
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    DRILL BIT

    • Publication number 20160333644
    • Publication date Nov 17, 2016
    • Lehti Group OY
    • Jukka Ahonen
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    PERCUSSIVE ROCK DRILL BIT WITH OPTIMISED GAUGE BUTTONS

    • Publication number 20160273275
    • Publication date Sep 22, 2016
    • Sandvik Intellectual Property AB
    • Per MATTSON
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    PERCUSSION HAMMER BIT

    • Publication number 20160153236
    • Publication date Jun 2, 2016
    • Alan J. MARSHALL
    • E21 - EARTH DRILLING MINING