E21B 17/073
With axial rotation
Official title: {with axial rotation}
E21B17/073 (With axial rotation) appears on 118 US grants and 84 published applications in this corpus.
Search patents in E21B- Granted patents
- 118
- Published applications
- 84
- Assignees
- 67
- Inventors
- 182
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 2 |
| 2002 | 3 | 1 |
| 2003 | 2 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 2 |
| 2007 | 1 | 5 |
| 2008 | 2 | 4 |
| 2009 | 2 | 2 |
| 2010 | 1 | 2 |
| 2011 | 3 | 4 |
| 2012 | 3 | 4 |
| 2013 | 1 | 3 |
| 2014 | 2 | 5 |
| 2015 | 4 | 0 |
| 2016 | 5 | 4 |
| 2017 | 0 | 7 |
| 2018 | 2 | 2 |
| 2019 | 5 | 5 |
| 2020 | 6 | 2 |
| 2021 | 4 | 4 |
| 2022 | 2 | 2 |
| 2023 | 3 | 6 |
| 2024 | 11 | 9 |
| 2025 | 10 | 4 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Active torsional isolator and damper29 Sep 2026US 12,747,642 B2Halliburton Energy Services.Inc.
- Sub-assembly, rock drilling rig, and method of absorbing vibrations in drilling7 Apr 2026US 12,595,707 B2Sandvik Mining and Construction Tools AB
- System, method and apparatus for downhole torque-transferring ball screw27 Jan 2026US 12,534,966 B2General Downhole Tools, Ltd.
- High frequency torsional oscillation mitigation tool16 Dec 2025US 12,497,844 B2Rockatek Limited
- Tri-axial shock absorber sub30 Sep 2025US 12,428,916 B2Stabil Drill Specialties, LLC
- Drill string rotation normalizing device and methods of using same23 Jul 2026US 2026/0210193 A1
- High frequency torsional oscillation mitigation tool19 Mar 2026US 2026/0078640 A1Rockatek Limited
- Tri-Axial Shock Absorber Sub8 Jan 2026US 2026/0009296 A1Stabil Drill Specialties, LLC
- Vibration mitigation tool28 Aug 2025US 2025/0270884 A1National Oilwell Varco, L. P.
- Active torsional isolator and damper1 May 2025US 2025/0137330 A1Halliburton Energy Services.Inc.
Most cited
By later US patents
- Fluid operated vibratory jar with rotating bit155US 5,156,223 A1992
- Fluid operated vibratory jar with rotating bit128US 4,958,691 A1990
- Bit torque limiting device92US 6,594,881 B2Baker Hughes Incorporated · 2003
- System and method for damping vibration in a drill string69US 7,219,752 B2APS Technologies · 2007
- Torque control device for rotary mine drilling machine68US 5,588,916 ADuramax, Inc. · 1996