E21B 43/128
Adaptation of pump systems with down-hole electric drives
Official title: {Adaptation of pump systems with down-hole electric drives}
E21B43/128 (Adaptation of pump systems with down-hole electric drives) appears on 1,557 US grants and 1,691 published applications in this corpus.
Search patents in E21B- Granted patents
- 1,557
- Published applications
- 1,691
- Assignees
- 352
- Inventors
- 2,143
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 5 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 7 | 0 |
| 1992 | 5 | 0 |
| 1993 | 7 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 10 | 0 |
| 1999 | 12 | 0 |
| 2000 | 21 | 0 |
| 2001 | 29 | 2 |
| 2002 | 17 | 14 |
| 2003 | 23 | 20 |
| 2004 | 11 | 9 |
| 2005 | 12 | 24 |
| 2006 | 17 | 19 |
| 2007 | 17 | 26 |
| 2008 | 20 | 32 |
| 2009 | 13 | 49 |
| 2010 | 48 | 39 |
| 2011 | 21 | 39 |
| 2012 | 32 | 36 |
| 2013 | 34 | 47 |
| 2014 | 33 | 64 |
| 2015 | 48 | 94 |
| 2016 | 45 | 99 |
| 2017 | 58 | 133 |
| 2018 | 89 | 127 |
| 2019 | 124 | 106 |
| 2020 | 125 | 117 |
| 2021 | 111 | 112 |
| 2022 | 106 | 89 |
| 2023 | 107 | 95 |
| 2024 | 112 | 128 |
| 2025 | 121 | 96 |
| 2026 | 77 | 75 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cables for cable deployed electric submersible pumps6 Oct 2026US 12,755,862 B2Schlumberger Technology Corporation
- Tooling for encapsulated ESP stators6 Oct 2026US 12,756,256 B2Schlumberger Technology Corporation
- Subsea pumping and booster system22 Sep 2026US 12,742,373 B2Baker Hughes Energy Technology UK Limited
- Integrating domain knowledge with machine learning to optimize electrical submersible pump performance22 Sep 2026US 12,742,379 B2Schlumberger Technology Corporation
- Motor power optimization for downhole motors22 Sep 2026US 12,742,450 B2Schlumberger Technology Corporation
- Systems and methods of prediction and management of scaling on components8 Oct 2026US 2026/0309156 A1Schlumberger Technology Corporation
- Mapping electrical connections to pumping units in a wellbore environment1 Oct 2026US 2026/0298057 A1Halliburton Energy Services.Inc.
- Preventing downhole loss of artificial lift system upon unintended component disconnection1 Oct 2026US 2026/0298058 A1Halliburton Energy Services.Inc.
- Scale control for protecting electric submersible pump1 Oct 2026US 2026/0298246 A1Saudi Arabian Oil Company
- Spin-resistant diffuser for electric submersible pump1 Oct 2026US 2026/0298264 A1Halliburton Energy Services.Inc.
Most cited
By later US patents
- Method and apparatus for pumping wells338US 5,207,273 AProduction Technologies International Inc. · 1993
- Electrical submersible pump and methods for enhanced utilization of electrical submersible pumps in the completion and production of wellbores267US 6,167,965 ABaker Hughes Incorporated · 2001
- Gas-liquid separator for well pumps168US 5,482,117 AAtlantic Richfield Company · 1996
- Method and system for wireless communications for downhole applications155US 6,899,178 B22005
- Safety system for submersible pump141US 4,425,965 AOtis Engineering Corporation · 1984