F04C 13/008
Pumps for submersible use, i.e. down-hole pumping
Official title: {Pumps for submersible use, i.e. down-hole pumping}
F04C13/008 (Pumps for submersible use, i.e. down-hole pumping) appears on 324 US grants and 363 published applications in this corpus.
Search patents in F04C- Granted patents
- 324
- Published applications
- 363
- Assignees
- 161
- Inventors
- 525
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 2 |
| 2002 | 10 | 5 |
| 2003 | 6 | 5 |
| 2004 | 3 | 5 |
| 2005 | 5 | 11 |
| 2006 | 5 | 5 |
| 2007 | 5 | 8 |
| 2008 | 7 | 8 |
| 2009 | 3 | 15 |
| 2010 | 6 | 15 |
| 2011 | 10 | 19 |
| 2012 | 9 | 18 |
| 2013 | 11 | 14 |
| 2014 | 9 | 19 |
| 2015 | 17 | 36 |
| 2016 | 11 | 24 |
| 2017 | 24 | 18 |
| 2018 | 20 | 32 |
| 2019 | 21 | 21 |
| 2020 | 24 | 21 |
| 2021 | 27 | 20 |
| 2022 | 22 | 8 |
| 2023 | 11 | 6 |
| 2024 | 5 | 6 |
| 2025 | 10 | 10 |
| 2026 | 6 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Progressive cavity pump system having reverse mode8 Sep 2026US 12,729,682 B2Schlumberger Technology Corporation
- Downhole fluid motor and associated methods11 Aug 2026US 12,704,022 B2Thru Tubing Solutions, Inc.
- Submersible pumping systems with intake modules having tangential fluid intake ports2 Jun 2026US 12,644,364 B2Baker Hughes Oilfield Operations LLC
- Thermistor flow path5 May 2026US 12,618,406 B2GHSP, Inc.
- Pump having hollow rotor disposed in stator24 Feb 2026US 12,560,061 B2Schlumberger Technology Corporation
- Thermistor flow path13 Aug 2026US 2026/0235120 A1GHSP, Inc.
- Stator with non-uniform thickness for one-to-two lobe ratio pumps6 Aug 2026US 2026/0226894 A1Schlumberger Technology Corporation
- Anisotropic stator reinforcement lining30 Jul 2026US 2026/0218572 A1Schlumberger Technology Corporation
- Progressive cavity assembly and associated methods2 Jul 2026US 2026/0185407 A1
- Pcp system with a horizontally oriented pmm18 Jun 2026US 2026/0168363 A1Schlumberger Technology Corporation
Most cited
By later US patents
- Sealless multiphase screw-pump-and-motor package132US 6,457,950 B1Flowserve Management Company · 2002
- Sub-sea pumping system and associated method including pressure compensating arrangement for cooling and lubricating128US 6,059,539 AWestinghouse Government Services Company LLC · 2000
- Sub-sea pumping system and an associated method including pressure compensating arrangement for cooling and lubricating fluid105US 5,795,135 AWestinghouse Electric Corp. · 1998
- Method and apparatus for controlling a submergible pumping system104US 6,045,333 ACamco International Inc. · 2000
- Fluid level control for a downhole well pumping system65US 6,497,556 B2CDX Gas, LLC · 2002