E21B 31/125
Specially adapted for parted wire line or ropes
Official title: {specially adapted for parted wire line or ropes}
E21B31/125 (Specially adapted for parted wire line or ropes) appears on 26 US grants and 19 published applications in this corpus.
Search patents in E21B- Granted patents
- 26
- Published applications
- 19
- Assignees
- 12
- Inventors
- 47
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 2 |
| 2013 | 2 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 3 |
| 2017 | 0 | 2 |
| 2018 | 1 | 1 |
| 2019 | 3 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 1 | 1 |
| 2023 | 0 | 1 |
| 2024 | 3 | 2 |
| 2025 | 3 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Recoverable fishing tool6 Oct 2026US 12,753,669 B1Saudi Arabian Oil Company
- Downhole wireline recovery tool and method of recovering downhole wirelines7 Jul 2026US 12,674,367 B2Saudi Arabian Oil Company
- Systems and methods for advanced fishing of downhole cable wire18 Nov 2025US 12,473,790 B2Schlumberger Technology Corporation
- Active grasping wireline fishing tool15 Jul 2025US 12,359,520 B1Saudi Arabian Oil Company
- Methods and apparatus for retrieving a wireline using a release sub20 May 2025US 12,305,463 B2Saudi Arabian Oil Company
- Tool configured to engage an object25 Jun 2026US 2026/0176930 A1Schlumberger Technology Corporation
- Downhole Fish Grabbing Tool9 Oct 2025US 2025/0314144 A1Saudi Arabian Oil Company
- Methods and apparatus for retrieving a wireline using a release sub1 May 2025US 2025/0137339 A1Saudi Arabian Oil Company
- Compaction and fishing spear for wireline lost downhole and method of use28 Nov 2024US 2024/0392645 A1Saudi Arabian Oil Company
- Systems and methods for advanced fishing of downhole cable wire7 Nov 2024US 2024/0368955 A1Schlumberger Technology Corporation
Most cited
By later US patents
- Method of using wired drillpipe for oilfield fishing operations14US 8,397,815 B2Schlumberger Technology Corporation · 2013
- Fishing tool to retrieve cables from wells8US 4,353,585 A1982
- Cable head for a wireline tool6US 11,448,026 B1Saudi Arabian Oil Company · 2022
- Expandable wirefinder and method for use of same6US 6,848,507 B2Malliburton Energy Services, Inc. · 2005
- Well cable stop for stripping operations4US 4,108,245 A1978