E21B 23/00
Apparatus for displacing, setting, locking, releasing or removing tools, packers or the
Official title: Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells (setting of casings, screens or liners E21B43/10)
E21B23/00 (Apparatus for displacing, setting, locking, releasing or removing tools, packers or the) appears on 7,111 US grants and 5,907 published applications in this corpus.
Search patents in E21B- Granted patents
- 7,111
- Published applications
- 5,907
- Assignees
- 1,313
- Inventors
- 7,700
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 30 | 0 |
| 1977 | 52 | 0 |
| 1978 | 55 | 0 |
| 1979 | 35 | 0 |
| 1980 | 32 | 0 |
| 1981 | 58 | 0 |
| 1982 | 50 | 0 |
| 1983 | 54 | 0 |
| 1984 | 60 | 0 |
| 1985 | 68 | 0 |
| 1986 | 59 | 0 |
| 1987 | 92 | 0 |
| 1988 | 68 | 0 |
| 1989 | 89 | 0 |
| 1990 | 75 | 0 |
| 1991 | 85 | 0 |
| 1992 | 66 | 0 |
| 1993 | 85 | 0 |
| 1994 | 101 | 0 |
| 1995 | 99 | 0 |
| 1996 | 80 | 0 |
| 1997 | 52 | 0 |
| 1998 | 98 | 0 |
| 1999 | 110 | 0 |
| 2000 | 110 | 0 |
| 2001 | 133 | 25 |
| 2002 | 114 | 115 |
| 2003 | 98 | 97 |
| 2004 | 82 | 131 |
| 2005 | 81 | 133 |
| 2006 | 100 | 77 |
| 2007 | 83 | 116 |
| 2008 | 96 | 110 |
| 2009 | 94 | 145 |
| 2010 | 102 | 185 |
| 2011 | 107 | 188 |
| 2012 | 128 | 211 |
| 2013 | 153 | 269 |
| 2014 | 199 | 313 |
| 2015 | 258 | 383 |
| 2016 | 273 | 354 |
| 2017 | 309 | 289 |
| 2018 | 307 | 349 |
| 2019 | 349 | 288 |
| 2020 | 319 | 365 |
| 2021 | 377 | 366 |
| 2022 | 346 | 357 |
| 2023 | 344 | 317 |
| 2024 | 338 | 316 |
| 2025 | 341 | 270 |
| 2026 | 217 | 138 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- E21B 23/04Operated by fluid means1,758
- E21B 23/06Apparatus for displacing, setting, locking, releasing or removing tools, packers or the1,399
- E21B 23/01Apparatus for displacing, setting, locking, releasing or removing tools, packers or the1,349
- E21B 23/02Apparatus for displacing, setting, locking, releasing or removing tools, packers or the894
- E21B 23/08Introducing or running tools by fluid pressure841
- E21B 23/004Indexing systems for guiding relative movement between telescoping parts of downhole tools792
- E21B 23/14Apparatus for displacing, setting, locking, releasing or removing tools, packers or the645
- E21B 23/001Self-propelling systems or apparatus432
All 9 subgroupsShow fewer
Recent patents
- Aromatic copolyester thermoset downhole tools6 Oct 2026US 12,753,665 B2Halliburton Energy Services.Inc.
- Downhole tool including related lug slots and lugs for coupling a milling tool and whipstock assembly6 Oct 2026US 12,753,666 B2Halliburton Energy Services.Inc.
- Tool string transportation device6 Oct 2026US 12,753,667 B2Petromac IP Limited
- Slidable isolation sleeve with I-shaped seal6 Oct 2026US 12,753,675 B2Halliburton Energy Services.Inc.
- Systems and methods for attached-anchored casing stub repair6 Oct 2026US 12,753,678 B2Saudi Arabian Oil Company
- Resettable, retrievable multi-size donut seal8 Oct 2026US 2026/0308999 A1Halliburton Energy Services.Inc.
- Downhole tool including a pressure intensifier1 Oct 2026US 2026/0298043 A1Halliburton Energy Services.Inc.
- Plugging assemblies for plugging cased wellbores1 Oct 2026US 2026/0298044 A1G&H Diversified Manufacturing LP
- Cylinder-less high pressure and high temperature liner hanger24 Sep 2026US 2026/0286795 A1
- Dual-Booster Power Charge24 Sep 2026US 2026/0286796 A1DBK Industries, LLC
Most cited
By later US patents
- Diamond thrust bearing and method for manufacturing same434US 5,092,687 AAnadrill, Inc. · 1992
- Thermally-enhanced oil recovery method and apparatus399US 4,694,907 ACarbotek, Inc. · 1987
- Well drilling tool with diamond radial/thrust bearings383US 4,410,054 AMaurer Engineering Inc. · 1983
- Formation-tailored method and apparatus for uniformly heating long subterranean intervals at high temperature368US 4,570,715 AShell Oil Company · 1986
- Heating rate variant elongated electrical resistance heater353US 4,704,514 A1987