E21B 17/028
Electrical or electro-magnetic connections
Official title: {Electrical or electro-magnetic connections}
E21B17/028 (Electrical or electro-magnetic connections) appears on 1,074 US grants and 1,041 published applications in this corpus.
Search patents in E21B- Granted patents
- 1,074
- Published applications
- 1,041
- Assignees
- 307
- Inventors
- 1,691
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 5 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 7 | 0 |
| 1986 | 9 | 0 |
| 1987 | 10 | 0 |
| 1988 | 9 | 0 |
| 1989 | 6 | 0 |
| 1990 | 8 | 0 |
| 1991 | 7 | 0 |
| 1992 | 8 | 0 |
| 1993 | 3 | 0 |
| 1994 | 7 | 0 |
| 1995 | 8 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 8 | 0 |
| 1999 | 5 | 0 |
| 2000 | 12 | 0 |
| 2001 | 12 | 6 |
| 2002 | 17 | 17 |
| 2003 | 17 | 29 |
| 2004 | 15 | 32 |
| 2005 | 24 | 42 |
| 2006 | 39 | 25 |
| 2007 | 25 | 37 |
| 2008 | 17 | 31 |
| 2009 | 25 | 27 |
| 2010 | 28 | 25 |
| 2011 | 25 | 40 |
| 2012 | 29 | 29 |
| 2013 | 14 | 34 |
| 2014 | 25 | 47 |
| 2015 | 36 | 60 |
| 2016 | 45 | 56 |
| 2017 | 58 | 49 |
| 2018 | 49 | 46 |
| 2019 | 50 | 43 |
| 2020 | 55 | 41 |
| 2021 | 44 | 68 |
| 2022 | 58 | 79 |
| 2023 | 76 | 67 |
| 2024 | 66 | 59 |
| 2025 | 70 | 30 |
| 2026 | 18 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Subsea pumping and booster system22 Sep 2026US 12,742,373 B2Baker Hughes Energy Technology UK Limited
- Selectively powering an electrical submersible pump assembly15 Sep 2026US 12,735,964 B2Saudi Arabian Oil Company
- Systems, methods and apparatus for downhole monitoring of production conditions using EM telemetry1 Sep 2026US 12,723,509 B2Geo Psi Pty Ltd
- External gap assembly28 Jul 2026US 12,692,754 B2Quantum Energy Technologies
- Completing a wellbore with multiple electrical submersible pump docking stations28 Jul 2026US 12,692,772 B2Saudi Arabian Oil Company
- Well pipe having electrical conductor with improved electrical contacts1 Oct 2026US 2026/0298379 A1
- Coupling for a threaded connection24 Sep 2026US 2026/0286784 A1Tenaris Connections Limited
- Pump installation apparatus, pump installation method, and pump removing method24 Sep 2026US 2026/0286799 A1
- Wetmate connection system and method17 Sep 2026US 2026/0275814 A1Schlumberger Technology Corporation
- Dead Short Switch and Method of Use10 Sep 2026US 2026/0266144 A1Gunnar LLLP
Most cited
By later US patents
- Downhole data transmission system288US 6,670,880 B1Novatek Engineering, Inc. · 2003
- In situ thermal processing of a hydrocarbon containing formation via backproducing through a heater well270US 6,932,155 B2Shell Oil Company · 2005
- In situ recovery from a hydrocarbon containing formation using barriers250US 7,077,198 B2Shell Oil Company · 2006
- In situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor233US 7,114,566 B2Shell Oil Company · 2006
- Producing hydrocarbons and non-hydrocarbon containing materials when treating a hydrocarbon containing formation229US 7,100,994 B2Shell Oil Company · 2006