E21B 34/106
The retrievable element being a secondary control fluid actuated valve landed into
Official title: {the retrievable element being a secondary control fluid actuated valve landed into the bore of a first inoperative control fluid actuated valve}
E21B34/106 (The retrievable element being a secondary control fluid actuated valve landed into) appears on 77 US grants and 52 published applications in this corpus.
Search patents in E21B- Granted patents
- 77
- Published applications
- 52
- Assignees
- 27
- Inventors
- 111
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 3 | 3 |
| 2004 | 1 | 3 |
| 2005 | 3 | 3 |
| 2006 | 1 | 1 |
| 2007 | 2 | 3 |
| 2008 | 2 | 3 |
| 2009 | 2 | 2 |
| 2010 | 3 | 1 |
| 2011 | 2 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 6 |
| 2016 | 0 | 1 |
| 2017 | 2 | 0 |
| 2018 | 5 | 5 |
| 2019 | 6 | 4 |
| 2020 | 3 | 2 |
| 2021 | 2 | 2 |
| 2022 | 2 | 4 |
| 2023 | 3 | 0 |
| 2024 | 1 | 3 |
| 2025 | 4 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Releasable downhole component for subterranean deployment along a wellbore string25 Aug 2026US 12,716,325 B2NCS Multistage Inc.
- High flow, tubing insensitive, deep set wireline retrievable safety valve14 Jul 2026US 12,680,419 B2Halliburton Energy Services.Inc.
- Safety valve, method, and system9 Sep 2025US 12,410,682 B2Baker Hughes Oilfield Operations LLC
- Wireline retrievable opening prong2 Sep 2025US 12,404,744 B2Halliburton Energy Services.Inc.
- Deep set wireline retrievable safety valve12 Aug 2025US 12,385,355 B1Halliburton Energy Services.Inc.
- High flow, tubing insensitive, deep set wireline retrievable safety valve9 Jul 2026US 2026/0193957 A1Halliburton Energy Services.Inc.
- Safety valve, method, and system15 May 2025US 2025/0154852 A1Baker Hughes Oilfield Operations LLC
- High Flow Deepset Insert Safety Valve10 Oct 2024US 2024/0337170 A1Halliburton Energy Services.Inc.
- Wireline Retrievable Opening Prong12 Sep 2024US 2024/0301767 A1Halliburton Energy Services.Inc.
- Releasable downhole component for subterranean deployment along a wellbore string9 May 2024US 2024/0151118 A1NCS Multistage Inc.
Most cited
By later US patents
- 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
- Hydraulic control fluid communication nipple73US 4,534,414 ACamco, Incorporated · 1985
- Lock open and control system access apparatus and method for a downhole safety valve54US 6,902,006 B2Baker Hughes Incorporated · 2005
- Perforating type lockout tool52US 5,249,630 AOtis Engineering Corporation · 1993