E21B 1/00

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Class  E21B : EARTH OR ROCK DRILLING


Subclass 1/00: Percussion drilling (drives used in the borehole E21B 4/00)

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
12241313 Connection for percussion drillingFeb 22, 19Mar 04, 25Sandvik Mining and Construction Tools AB
12098599 Shoulder protected drilling assemblyOct 09, 20Sep 24, 24Sandvik Mining and Construction Tools AB
12049813 Method of controlling a drilling process of a percussion drilling machineMar 18, 20Jul 30, 24EPIROC ROCK DRILLS AKTIEBOLAG
11851952 Downhole displacement impact method and impact drilling toolJul 08, 22Dec 26, 23Yangtze University
11840906 Downhole pressure wave generating deviceAug 29, 22Dec 12, 23OPTIMUM PETROLEUM SERVICES INC.
11773720 Microwave-mechanical fluidization mining system and mining method for metal minesApr 01, 21Oct 03, 23Northeastern University
11708723 Guide for top drive unitJan 18, 21Jul 25, 23Gordon Bros. Supply, Inc.
11692403 Rod section of a ground drilling rodSep 03, 21Jul 04, 23Tracto-Technik GmbH & Co. KG
11686157 Pressure reversing valve for a fluid-actuated, percussive drilling toolFeb 17, 22Jun 27, 23Not available
11680446 Valve piloting arrangements for hydraulic percussion devicesJul 17, 18Jun 20, 23MINCON INTERNATIONAL LIMITED
11459856 Downhole pressure wave generating deviceSep 02, 20Oct 04, 22OPTIMUM PETROLEUM SERVICES INC.
11448013 Method and apparatus for percussion drillingDec 05, 18Sep 20, 22Epiroc Drilling Solutions, LLC
11293245 Deployment of downhole sensing devicesJul 29, 16Apr 05, 22Globaltech Corporation Pty Ltd
11280134 Ground drilling device, method for making a ground drilling device, method for maintaining a ground drilling device, and use of a ground drilling deviceFeb 04, 20Mar 22, 22Tracto-Technik GmbH & Co. KG
11236549 Drill bit with detachable bit headJul 17, 18Feb 01, 22MINCON INTERNATIONAL LIMITED
11203905 Drill string section for drilling in the ground, ground drilling device, and use of a drill string sectionOct 24, 19Dec 21, 21Tracto-Technik GmbH & Co. KG
11174701 Wellbore remedial operations with no-heat liquid solderJan 17, 20Nov 16, 21Halliburton Energy Services, Inc.
11162619 Drill rod or adaptor with strengthened spigot couplingMay 19, 16Nov 02, 21Sandvik Intellectual Property AB
11149496 Coupling apparatus for coiled tubings of different diameters, installing method for coupling apparatus, and installing method for tubings of different diameters using coupling apparatusJan 24, 18Oct 19, 21China National Petroleum Corporation; XINJIANG PETROLEUM ADMINISTRATION ENGINEERING TECHNOLOGY COMPANY;
11149495 Apparatus and method for modifying axial forceMar 27, 15Oct 19, 21Not available

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Recent Publications

Publication #TitleFiling DatePub DatePatent Owner
2024/0076,978 METHOD AND SYSTEM FOR OPTIMISING A DRILLING PARAMETER DURING AN ONGOING DRILLING PROCESSNov 30, 21Mar 07, 24Not available
2022/0003,042 APPARATUS AND METHOD FOR MODIFYING AXIAL FORCESep 17, 21Jan 06, 22Not available
2018/0283,101 HAMMER DRILLJun 07, 18Oct 04, 18Ashmin Holding LLC
2018/0262,074 Method of Encapsulating Motor Windings of Electrical Submersible Pump in Bonded CeramicMay 09, 18Sep 13, 18Baker Hughes, a GE company, LLC
2018/0058,145 APPARATUS AND METHODS FOR ACTIVATING A DOWNHOLE PERCUSSION TOOLAug 25, 17Mar 01, 18NATIONAL OILWELL DHT, L.P.
2017/0175,446 Force Stacking Assembly for Use with a Subterranean Excavating SystemDec 13, 16Jun 22, 17ARAMCO OVERSEAS COMPANY B.V., GEOPROBER LTD.,
2017/0030,166 SHOCK AND VIBRATION TOOL MODELINGJul 22, 16Feb 02, 17SCHLUMBERGER TECHNOLOGY CORPORATION

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