F04D 25/0686
Specially adapted for submerged use
Official title: {specially adapted for submerged use}
F04D25/0686 (Specially adapted for submerged use) appears on 146 US grants and 202 published applications in this corpus.
Search patents in F04D- Granted patents
- 146
- Published applications
- 202
- Assignees
- 78
- Inventors
- 319
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 8 |
| 2010 | 1 | 7 |
| 2011 | 1 | 8 |
| 2012 | 7 | 10 |
| 2013 | 3 | 7 |
| 2014 | 6 | 12 |
| 2015 | 6 | 17 |
| 2016 | 9 | 13 |
| 2017 | 10 | 16 |
| 2018 | 14 | 30 |
| 2019 | 11 | 17 |
| 2020 | 23 | 9 |
| 2021 | 11 | 12 |
| 2022 | 10 | 7 |
| 2023 | 9 | 9 |
| 2024 | 7 | 1 |
| 2025 | 7 | 7 |
| 2026 | 2 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Milling and debris collecting with multiphase vacuum pump2 Jun 2026US 12,644,359 B2Schlumberger Technology Corporation
- Pump for immersion within a fluid reservoir5 May 2026US 12,618,412 B2Nuhn Industries Ltd.
- Electrical submersible motor protecting system and method with chemical chamber23 Dec 2025US 12,504,018 B2Alkhorayef Petroleum Company
- Submersible well fluid system25 Nov 2025US 12,480,390 B2FMC Technologies, Inc.
- Systems and methods for balancing unbalanced power cables4 Nov 2025US 12,462,954 B2National Oilwell Varco, L. P.
- Pump for immersion within a fluid reservoir23 Jul 2026US 2026/0210366 A1Nuhn Industries Ltd.
- Using Multiple In-Line Fluid Systems16 Apr 2026US 2026/0103960 A1Upwing Energy, LLC
- In-Line Fluid System with Pressurized Coupling16 Apr 2026US 2026/0103962 A1Upwing Energy, LLC
- In-Line Fluid System with In-Line Fluid End16 Apr 2026US 2026/0103963 A1Upwing Energy, LLC
- In-Line Fluid System16 Apr 2026US 2026/0104050 A1Upwing Energy, LLC
Most cited
By later US patents
- Downhole gas/water separation and re-injection86US 6,691,781 B2Norsk Hydro ASA · 2004
- Cooling system for electromagnetic bearings of a turbocompressor53US 6,464,469 B1Man Turbomaschinen AG GHH Borsig · 2002
- Compressor unit46US 4,969,803 AMAN Gutehoffnungshutte Aktiengesellschaft · 1990
- Compressor system and method of operation35US 5,382,141 AKvaener Rosenberg a.s. Kvaerner Subsea Contracting · 1995
- Pump or compressor unit30US 4,830,584 A1989