E21B 1/12

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
2024/0218,743 Multi-Tool Boring Systems and Methods of Operating Such SystemsMar 18, 24Jul 04, 24ArcByt, Inc.
2024/0093,557 MULTI-TOOL BORING SYSTEMS AND METHODS OF OPERATING SUCH SYSTEMSSep 06, 23Mar 21, 24ArcByt, Inc.
2012/0247,837 HORIZONTAL DRILLING SYSTEMJun 11, 12Oct 04, 12Not available
2011/0031,018 HORIZONTAL DRILLING SYSTEMAug 04, 09Feb 10, 11Pioneer One, Inc.
2010/0187,016 Percussion Hammer Bit With a Driver Sub Including a Guide Sleeve PortionJan 28, 09Jul 29, 10SMITH INTERNATIONAL, INC.
2009/0121,537 Boom arrangement for a scaling device and scaling deviceOct 06, 05May 14, 09ATLAS COPCO ROCK DRILLS AB
2009/0101,413 DTH-hammer drilling device and overburden drilling methodJun 07, 06Apr 23, 09Geomechanik Wasser-Und Umwelttechnik GmbH
2008/0054,707 Formation Breaking AssemblySep 01, 06Mar 06, 08NOVATEK IP, LLC
2008/0029,309 Blade Assembly Especially for an Ice Auger or LikeMar 18, 05Feb 07, 08KONSAKU OY
2006/0012,239 Head for excavator mounted to power shovelSep 22, 05Jan 19, 06Dae Suk Engineering Co., Ltd.