F04D 9/002
By means in the very pump
Official title: {by means in the very pump (F04D9/041 takes precedence)}
F04D9/002 (By means in the very pump) appears on 147 US grants and 90 published applications in this corpus.
Search patents in F04D- Granted patents
- 147
- Published applications
- 90
- Assignees
- 96
- Inventors
- 311
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 6 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 6 | 0 |
| 1993 | 4 | 0 |
| 1994 | 6 | 0 |
| 1995 | 3 | 0 |
| 1996 | 7 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 4 | 0 |
| 2001 | 7 | 1 |
| 2002 | 1 | 1 |
| 2003 | 3 | 2 |
| 2004 | 2 | 0 |
| 2005 | 0 | 3 |
| 2006 | 1 | 4 |
| 2007 | 2 | 2 |
| 2008 | 1 | 3 |
| 2009 | 2 | 3 |
| 2010 | 0 | 5 |
| 2011 | 1 | 0 |
| 2012 | 1 | 2 |
| 2013 | 2 | 3 |
| 2014 | 3 | 5 |
| 2015 | 1 | 6 |
| 2016 | 2 | 6 |
| 2017 | 9 | 3 |
| 2018 | 3 | 1 |
| 2019 | 5 | 6 |
| 2020 | 2 | 2 |
| 2021 | 5 | 9 |
| 2022 | 6 | 1 |
| 2023 | 5 | 7 |
| 2024 | 5 | 4 |
| 2025 | 7 | 7 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Energy irrigation pump truck4 Aug 2026US 12,696,854 B2Zhejiang University of Water Resources and Electric Power
- Method for controlling of a pump unit and a pump unit for pumping liquid or suspension5 May 2026US 12,618,413 B2Sulzer Management AG
- Automatic exhaust mechanism17 Feb 2026US 12,553,442 B2Belgravia Wood Limited
- Impeller rotor seal runner with divergent guide surface30 Dec 2025US 12,510,082 B1Pratt & Whitney Canada Corp.
- Automatic exhaust mechanism25 Nov 2025US 12,480,499 B2Belgravia Wood Limited
- Electronic solenoid control for a self-priming electric pump6 Aug 2026US 2026/0226890 A1Fluid Handling LLC
- Gas separator for electric submersible pump2 Jul 2026US 2026/0185436 A1Halliburton Energy Services.Inc.
- Automatic exhaust mechanism21 May 2026US 2026/0139677 A1Belgravia Wood Limited
- Impeller rotor seal runner with anti-rotation feature7 May 2026US 2026/0126046 A1Pratt & Whitney Canada Corp.
- Method for controlling of a pump unit and a pump unit for pumping liquid or suspension20 Nov 2025US 2025/0354557 A1Sulzer Management AG
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
- Liquid-gas separator apparatus109US 4,481,020 ATRW Inc. · 1984
- Submersible well pump gas separator71US 5,207,810 ABaker Hughes Incorporated · 1993
- Method for multi-phase data communications and control over an ESP power cable59US 6,587,037 B1Baker Hughes Incorporated · 2003
- Pump for and method of separating gas from a fluid to be pumped48US 4,981,413 AA. Ahlstrom Corporation · 1991