E21B 43/106
Couplings or joints therefor
Official title: {Couplings or joints therefor}
E21B43/106 (Couplings or joints therefor) appears on 373 US grants and 432 published applications in this corpus.
Search patents in E21B- Granted patents
- 373
- Published applications
- 432
- Assignees
- 68
- Inventors
- 400
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 4 |
| 2002 | 7 | 33 |
| 2003 | 26 | 45 |
| 2004 | 29 | 62 |
| 2005 | 24 | 67 |
| 2006 | 51 | 33 |
| 2007 | 47 | 44 |
| 2008 | 37 | 28 |
| 2009 | 20 | 8 |
| 2010 | 11 | 10 |
| 2011 | 11 | 5 |
| 2012 | 10 | 7 |
| 2013 | 4 | 13 |
| 2014 | 7 | 10 |
| 2015 | 6 | 5 |
| 2016 | 5 | 6 |
| 2017 | 6 | 5 |
| 2018 | 8 | 13 |
| 2019 | 9 | 3 |
| 2020 | 10 | 8 |
| 2021 | 5 | 10 |
| 2022 | 10 | 3 |
| 2023 | 4 | 4 |
| 2024 | 4 | 4 |
| 2025 | 3 | 2 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of creating an annular zonal isolation seal in a downhole annulus6 Oct 2026US 12,753,679 B2Shell USA, Inc.
- Modular anti-rotation drilling systems and methods actuated by fluid pressure29 Sep 2026US 12,747,654 B1National Technology & Engineering Solutions of Sandia, LLC
- System for hydraulically expanding a liner hanger31 Mar 2026US 12,590,514 B2Enventure Global Technology, LLC
- Mechanical stop arrangement for a borehole tubular to locate and restrain a borehole tool to an outside diameter of the tubular, method, and system26 Aug 2025US 12,398,606 B2Baker Hughes Oilfield Operations LLC
- System and methodology for utilizing anchoring element with expandable tubular19 Aug 2025US 12,392,227 B2Schlumberger Technology Corporation
- Liner hanger running tool with contingency release27 Nov 2025US 2025/0361798 A1
- Mechanical stop arrangement for a borehole tubular to locate and restrain a borehole tool to an outside diameter of the tubular, method, and system27 Mar 2025US 2025/0101824 A1Baker Hughes Oilfield Operations LLC
- System and methodology for utilizing anchoring element with expandable tubular10 Oct 2024US 2024/0337172 A1Schlumberger Technology Corporation
- System for Hydraulically Expanding a Liner Hanger3 Oct 2024US 2024/0328286 A1Enventure Global Technology, LLC
- Performing a wellbore tieback operation29 Aug 2024US 2024/0287876 A1Saudi Arabian Oil Company
Most cited
By later US patents
- Method and apparatus for hanging tubulars in wells321US 6,098,717 AFormlock, Inc. · 2000
- Procedures and equipment for profiling and jointing of pipes319US 6,457,532 B1Weatherford/Lamb, Inc. · 2002
- Expandable wellbore junction301US 6,135,208 AHalliburton Energy Services.Inc. · 2000
- Expandable joint connector281US 6,409,175 B1Grant Prideco, L.P. · 2002
- Tubular patch240US 5,785,120 AWeatherford/Lamb, Inc. · 1998