with roller axle supported at both ends

Industry

  • CPC
  • E21B10/10
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    HYBRID BIT

    • Publication number 20220220807
    • Publication date Jul 14, 2022
    • SCHLUMBERGER TECHNOLOGY CORPORATION
    • Scott D. McDonough
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Roller Reamer

    • Publication number 20200165877
    • Publication date May 28, 2020
    • Hole Opener Corporation International
    • Jonathan Adam Moore
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    METHODS FOR TREATING PULMONARY HYPERTENSION

    • Publication number 20190298753
    • Publication date Oct 3, 2019
    • Chiesi Farmaceutici s.p.A.
    • David Kylhammar
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    RAISE BORING HEAD FOR ROTARY BORING

    • Publication number 20180223600
    • Publication date Aug 9, 2018
    • Sandvik Intellectual Property AB
    • Joona LOIKKANEN
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    HYBRID DRILL BIT WITH COUNTER-ROTATION CUTTERS IN CENTER

    • Publication number 20180202231
    • Publication date Jul 19, 2018
    • Halliburton Energy Services, Inc.
    • Seth Garrett Anderle
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    BI-DIRECTIONAL DRILLING SYSTEMS AND METHODS

    • Publication number 20180002985
    • Publication date Jan 4, 2018
    • SCHLUMBERGER TECHNOLOGY CORPORATION
    • Siamak Dadkhah
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    SUBSURFACE DRILLING TOOL

    • Publication number 20160237752
    • Publication date Aug 18, 2016
    • Tenax Energy Solutions, LLC
    • KEVIN DEWAYNE JONES
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    EARTH - BORING CUTTER MOUNT AND ASSEMBLY

    • Publication number 20110220422
    • Publication date Sep 15, 2011
    • Stu Blattner
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    CUTTER ASSEMBLY FOR A RAISE BORING REAMER

    • Publication number 20100126778
    • Publication date May 27, 2010
    • ATLAS COPCO SECOROC LLC
    • Andrew J. Osborne, JR.
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Boring head, roller cutter and saddle for a boring head for rotary...

    • Publication number 20030106720
    • Publication date Jun 12, 2003
    • Stig-Ake Brolund
    • E21 - EARTH DRILLING MINING