F04D 13/08
For submerged use
Official title: for submerged use
F04D13/08 (For submerged use) appears on 1,576 US grants and 1,669 published applications in this corpus.
Search patents in F04D- Granted patents
- 1,576
- Published applications
- 1,669
- Assignees
- 551
- Inventors
- 2,484
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 10 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 7 | 0 |
| 1981 | 9 | 0 |
| 1982 | 7 | 0 |
| 1983 | 13 | 0 |
| 1984 | 7 | 0 |
| 1985 | 13 | 0 |
| 1986 | 3 | 0 |
| 1987 | 7 | 0 |
| 1988 | 7 | 0 |
| 1989 | 8 | 0 |
| 1990 | 10 | 0 |
| 1991 | 12 | 0 |
| 1992 | 12 | 0 |
| 1993 | 14 | 0 |
| 1994 | 11 | 0 |
| 1995 | 12 | 0 |
| 1996 | 10 | 0 |
| 1997 | 10 | 0 |
| 1998 | 11 | 0 |
| 1999 | 10 | 0 |
| 2000 | 17 | 0 |
| 2001 | 23 | 2 |
| 2002 | 13 | 10 |
| 2003 | 15 | 15 |
| 2004 | 11 | 17 |
| 2005 | 14 | 27 |
| 2006 | 10 | 16 |
| 2007 | 9 | 25 |
| 2008 | 18 | 22 |
| 2009 | 17 | 35 |
| 2010 | 24 | 41 |
| 2011 | 19 | 47 |
| 2012 | 23 | 53 |
| 2013 | 38 | 59 |
| 2014 | 46 | 71 |
| 2015 | 43 | 113 |
| 2016 | 58 | 97 |
| 2017 | 67 | 106 |
| 2018 | 81 | 102 |
| 2019 | 113 | 107 |
| 2020 | 108 | 110 |
| 2021 | 90 | 130 |
| 2022 | 110 | 100 |
| 2023 | 106 | 96 |
| 2024 | 118 | 124 |
| 2025 | 113 | 72 |
| 2026 | 57 | 72 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Tooling for encapsulated ESP stators6 Oct 2026US 12,756,256 B2Schlumberger Technology Corporation
- Stator assembly for electric submersible pump29 Sep 2026US 12,747,740 B2National Oilwell Varco, L. P.
- Water well submersible pump filter29 Sep 2026US 12,747,741 B2FES Labs, LLC
- 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
- Gas separator for electrical submersible pump8 Oct 2026US 2026/0309018 A1Halliburton Energy Services.Inc.
- Systems and methods of prediction and management of scaling on components8 Oct 2026US 2026/0309156 A1Schlumberger Technology Corporation
- Scale control for protecting electric submersible pump1 Oct 2026US 2026/0298246 A1Saudi Arabian Oil Company
- Submersible electronics module and submersible pump assembly with such24 Sep 2026US 2026/0286964 A1Grundfos Holding A/S
- Subsea pumping and booster system17 Sep 2026US 2026/0275839 A1Baker Hughes Energy Technology UK Limited
Most cited
By later US patents
- 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
- Safety system for submersible pump141US 4,425,965 AOtis Engineering Corporation · 1984
- Control system for centrifugal pumps114US 7,117,120 B2Unico, Inc. · 2006
- Liquid-gas separator apparatus109US 4,481,020 ATRW Inc. · 1984
- Digital logic control system for three-phase submersible pump motor107US 4,021,700 ABorg-Warner Corporation · 1977