E21B 34/066
Electrically actuated
Official title: {electrically actuated}
E21B34/066 (Electrically actuated) appears on 785 US grants and 759 published applications in this corpus.
Search patents in E21B- Granted patents
- 785
- Published applications
- 759
- Assignees
- 179
- Inventors
- 1,166
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 6 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 4 | 0 |
| 1987 | 5 | 0 |
| 1988 | 7 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 9 | 0 |
| 1994 | 10 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 6 | 0 |
| 1999 | 17 | 0 |
| 2000 | 11 | 0 |
| 2001 | 26 | 5 |
| 2002 | 17 | 17 |
| 2003 | 13 | 13 |
| 2004 | 10 | 17 |
| 2005 | 12 | 8 |
| 2006 | 13 | 7 |
| 2007 | 5 | 12 |
| 2008 | 5 | 6 |
| 2009 | 7 | 13 |
| 2010 | 11 | 15 |
| 2011 | 7 | 16 |
| 2012 | 8 | 14 |
| 2013 | 18 | 27 |
| 2014 | 17 | 35 |
| 2015 | 13 | 35 |
| 2016 | 33 | 35 |
| 2017 | 35 | 35 |
| 2018 | 33 | 43 |
| 2019 | 42 | 52 |
| 2020 | 38 | 40 |
| 2021 | 48 | 51 |
| 2022 | 52 | 52 |
| 2023 | 57 | 46 |
| 2024 | 66 | 63 |
| 2025 | 51 | 59 |
| 2026 | 44 | 43 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Safety valve, well system, and method employing a temperature sensor29 Sep 2026US 12,747,648 B2Halliburton Energy Services.Inc.
- Safety valve, well system, and method employing an electrical sensor29 Sep 2026US 12,747,649 B2Halliburton Energy Services.Inc.
- Non-destructively decoupling electric actuator of downhole flow control device22 Sep 2026US 12,742,366 B2Halliburton Energy Services.Inc.
- Method and apparatus for downhole fluid microsample collection with staged hydraulic actuation22 Sep 2026US 12,742,386 B2Halliburton Energy Services.Inc.
- Downhole autonomous inflow control device8 Sep 2026US 12,729,601 B1Saudi Arabian Oil Company
- Safety valve with electrical actuator1 Oct 2026US 2026/0298050 A1Schlumberger Technology Corporation
- Flow management assemblies, methods and well24 Sep 2026US 2026/0286809 A1Metrol Technology Limited
- Valve system for use in a wellbore17 Sep 2026US 2026/0275828 A1Interwell Norway AS
- Safety valve employing radially coupled magnetic targets and a magnetic assembly axially coupled to a magnetic target17 Sep 2026US 2026/0275829 A1Halliburton Energy Services.Inc.
- Downhole autonomous inflow control device10 Sep 2026US 2026/0266158 A1Saudi Arabian Oil Company
Most cited
By later US patents
- Petroleum well having downhole sensors, communication and power268US 6,679,332 B2Shell Oil Company · 2004
- Permanent downhole, wireless, two-way telemetry backbone using redundant repeaters221US 6,958,704 B2Shell Oil Company · 2005
- Downhole production well control system and method208US 5,732,776 ABaker Hughes Incorporated · 1998
- Controllable gas-lift well and valve202US 6,715,550 B2Shell Oil Company · 2004
- Method and apparatus for providing controlled force transference to a wellbore tool200US 5,343,963 A1994