E21B 34/105
Retrievable
Official title: {retrievable, e.g. wire line retrievable, i.e. with an element which can be landed into a landing-nipple provided with a passage for control fluid}
E21B34/105 (Retrievable) appears on 284 US grants and 165 published applications in this corpus.
Search patents in E21B- Granted patents
- 284
- Published applications
- 165
- Assignees
- 77
- Inventors
- 384
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 10 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 8 | 0 |
| 1982 | 2 | 0 |
| 1983 | 8 | 0 |
| 1984 | 14 | 0 |
| 1985 | 9 | 0 |
| 1986 | 9 | 0 |
| 1987 | 5 | 0 |
| 1988 | 7 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 5 | 0 |
| 1993 | 7 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 4 | 0 |
| 2002 | 4 | 2 |
| 2003 | 4 | 4 |
| 2004 | 1 | 8 |
| 2005 | 4 | 7 |
| 2006 | 8 | 5 |
| 2007 | 5 | 7 |
| 2008 | 4 | 10 |
| 2009 | 4 | 12 |
| 2010 | 12 | 3 |
| 2011 | 7 | 4 |
| 2012 | 5 | 7 |
| 2013 | 2 | 8 |
| 2014 | 5 | 8 |
| 2015 | 4 | 11 |
| 2016 | 5 | 3 |
| 2017 | 5 | 2 |
| 2018 | 8 | 13 |
| 2019 | 13 | 11 |
| 2020 | 14 | 10 |
| 2021 | 8 | 5 |
| 2022 | 7 | 6 |
| 2023 | 10 | 2 |
| 2024 | 4 | 5 |
| 2025 | 9 | 8 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Releasable downhole component for subterranean deployment along a wellbore string25 Aug 2026US 12,716,325 B2NCS Multistage Inc.
- Deep-set insert valve using magnetic coupling25 Aug 2026US 12,716,326 B2Halliburton Energy Services.Inc.
- High flow, tubing insensitive, deep set wireline retrievable safety valve14 Jul 2026US 12,680,419 B2Halliburton Energy Services.Inc.
- Contingency sealing option for surface controlled flow control device31 Mar 2026US 12,590,516 B2Silverwell Technology Limited
- Tubing and control line hydrostatic-insensitive single control line safety valve9 Sep 2025US 12,410,681 B2Halliburton Energy Services.Inc.
- Downhole tool, well system, and method for ammonia or methanol production1 Oct 2026US 2026/0298051 A1Halliburton Energy Services.Inc.
- High flow, tubing insensitive, deep set wireline retrievable safety valve9 Jul 2026US 2026/0193957 A1Halliburton Energy Services.Inc.
- Flapper rearrangement tool and method9 Jul 2026US 2026/0193959 A1Abu Dhabi Company for Onshore Petroleum Operations Limited
- Valve system for use in a wellbore19 Feb 2026US 2026/0049535 A1Interwell Norway AS
- Retrievable check valve18 Dec 2025US 2025/0383025 A1Wrangtech Doo Novi Sad
Most cited
By later US patents
- Sand control method and apparatus114US 6,446,729 B1Schlumberger Technology Corporation · 2002
- Downhole safety valve for subterranean well and method98US 4,944,351 ABaker Hughes Incorporated · 1990
- Method and apparatus for establishing communication with a downhole portion of a control fluid pipe93US 4,981,177 ABaker Hughes Incorporated · 1991
- Safety valve landing nipple and method86US 5,226,483 AOtis Engineering Corporation · 1993
- Apparatus and method for controlling fluid flow with sand control84US 6,343,651 B12002