E21B 17/076
Between rod or pipe and drill bit
Official title: {between rod or pipe and drill bit}
E21B17/076 (Between rod or pipe and drill bit) appears on 132 US grants and 114 published applications in this corpus.
Search patents in E21B- Granted patents
- 132
- Published applications
- 114
- Assignees
- 75
- Inventors
- 217
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 3 |
| 2002 | 2 | 4 |
| 2003 | 3 | 2 |
| 2004 | 6 | 7 |
| 2005 | 2 | 2 |
| 2006 | 3 | 2 |
| 2007 | 3 | 4 |
| 2008 | 4 | 8 |
| 2009 | 0 | 3 |
| 2010 | 5 | 10 |
| 2011 | 8 | 3 |
| 2012 | 5 | 4 |
| 2013 | 2 | 7 |
| 2014 | 1 | 5 |
| 2015 | 6 | 4 |
| 2016 | 1 | 7 |
| 2017 | 2 | 9 |
| 2018 | 4 | 1 |
| 2019 | 9 | 1 |
| 2020 | 3 | 3 |
| 2021 | 2 | 7 |
| 2022 | 3 | 4 |
| 2023 | 8 | 6 |
| 2024 | 5 | 2 |
| 2025 | 5 | 5 |
| 2026 | 3 | 1 |
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.
- Drilling assembly14 Apr 2026US 12,601,223 B2BAUER Spezialtiefbau GmbH
- Sub-assembly, rock drilling rig, and method of absorbing vibrations in drilling7 Apr 2026US 12,595,707 B2Sandvik Mining and Construction Tools AB
- Drilling downhole regulating devices and related methods30 Sep 2025US 12,428,917 B2Drill Safe Systems Inc.
- Flexible coupler for reducing torsional oscillations12 Aug 2025US 12,385,328 B2Baker Hughes Oilfield Operations LLC
- Downhole apparatus for oscillating a tubular string8 Oct 2026US 2026/0308989 A1Grant Prideco, L.P.
- Drilling assembly6 Nov 2025US 2025/0341132 A1BAUER Spezialtiefbau GmbH
- Viscous vibration damping of torsional oscillation17 Jul 2025US 2025/0230716 A1Baker Hughes Oilfield Operations LLC
- Viscous dampening component for use with earth-boring rotary drill bits, and earth-boring rotary drill bits including a viscous dampening component19 Jun 2025US 2025/0198242 A1Baker Hughes Oilfield Operations LLC
- Active torsional isolator and damper1 May 2025US 2025/0137330 A1Halliburton Energy Services.Inc.
Most cited
By later US patents
- Downhole drill bit and bit coupling155US 4,962,822 ANuma Tool Company · 1990
- Bit torque limiting device92US 6,594,881 B2Baker Hughes Incorporated · 2003
- Down hole hammer assembly87US 6,035,953 A2000
- Torque control device for rotary mine drilling machine68US 5,588,916 ADuramax, Inc. · 1996
- Method and apparatus for drilling a subterranean formation employing drill bit oscillation67US 6,338,390 B12002