E21B 7/062
The tool shaft rotating inside a non-rotating guide travelling with the shaft
Official title: {the tool shaft rotating inside a non-rotating guide travelling with the shaft (E21B7/067 and E21B7/068 take precedence)}
E21B7/062 (The tool shaft rotating inside a non-rotating guide travelling with the shaft) appears on 430 US grants and 366 published applications in this corpus.
Search patents in E21B- Granted patents
- 430
- Published applications
- 366
- Assignees
- 136
- Inventors
- 569
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 7 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 6 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 7 | 0 |
| 2000 | 3 | 0 |
| 2001 | 8 | 4 |
| 2002 | 11 | 8 |
| 2003 | 6 | 6 |
| 2004 | 5 | 12 |
| 2005 | 8 | 5 |
| 2006 | 4 | 11 |
| 2007 | 12 | 7 |
| 2008 | 9 | 5 |
| 2009 | 5 | 10 |
| 2010 | 5 | 7 |
| 2011 | 6 | 6 |
| 2012 | 8 | 12 |
| 2013 | 9 | 14 |
| 2014 | 12 | 21 |
| 2015 | 9 | 19 |
| 2016 | 16 | 34 |
| 2017 | 29 | 30 |
| 2018 | 25 | 25 |
| 2019 | 31 | 21 |
| 2020 | 35 | 37 |
| 2021 | 34 | 21 |
| 2022 | 19 | 13 |
| 2023 | 13 | 4 |
| 2024 | 11 | 10 |
| 2025 | 17 | 12 |
| 2026 | 6 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Push the bit rotary steerable system11 Aug 2026US 12,704,023 B2D-Tech UK Ltd
- Bias tool pad actuator12 May 2026US 12,624,595 B2Schlumberger Technology Corporation
- Systems and methods to monitor operabilty of an actuator of a rotatable steerable system (RSS)24 Feb 2026US 12,560,076 B1Schlumberger Technology Corporation
- Systems and methods for an array of different downhole sensors in a single tool body17 Feb 2026US 12,553,331 B2Well Resolutions Technology
- Roll isolated rotary steerable systems employing digital valves3 Feb 2026US 12,540,511 B1Schlumberger Technology Corporation
- Systems and methods for steering a downhole tool6 Aug 2026US 2026/0226797 A1Schlumberger Technology Corporation
- Machining gas switch lead wire drilling tool for indirect live-wire and method of operating the same25 Jun 2026US 2026/0176925 A1Korea Electric Power Corporation
- Push the bit rotary steerable system11 Jun 2026US 2026/0160135 A1D-Tech UK Ltd
- Continuous rotation coiled tubing orienting tool with active hydraulic control14 May 2026US 2026/0132682 A1Schlumberger Technology Corporation
- Continuous rotation coiled tubing orienting tool with self-reversing threads14 May 2026US 2026/0132684 A1Schlumberger Technology Corporation
Most cited
By later US patents
- System for controlled drilling of boreholes along planned profile204US 5,220,963 APatton Consulting, Inc. · 1993
- Apparatus and method for simultaneous drilling and casing wellbores188US 6,419,033 B1Baker Hughes Incorporated · 2002
- Steerable rotary drilling device and directional drilling method172US 6,244,361 B1Halliburton Energy Services.Inc. · 2001
- Directional drilling apparatus171US 6,364,034 B12002
- Curved drilling apparatus148US 5,423,389 AAmoco Corporation · 1995