F02K 9/46
Using pumps
Official title: using pumps
F02K9/46 (Using pumps) appears on 198 US grants and 177 published applications in this corpus.
Search patents in F02K- Granted patents
- 198
- Published applications
- 177
- Assignees
- 108
- Inventors
- 402
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 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 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 7 | 0 |
| 1994 | 0 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 7 | 1 |
| 2002 | 3 | 1 |
| 2003 | 8 | 8 |
| 2004 | 4 | 5 |
| 2005 | 4 | 1 |
| 2006 | 2 | 0 |
| 2007 | 3 | 1 |
| 2008 | 3 | 4 |
| 2009 | 2 | 3 |
| 2010 | 3 | 4 |
| 2011 | 3 | 0 |
| 2012 | 3 | 3 |
| 2013 | 6 | 4 |
| 2014 | 0 | 8 |
| 2015 | 6 | 17 |
| 2016 | 5 | 12 |
| 2017 | 5 | 9 |
| 2018 | 4 | 13 |
| 2019 | 10 | 12 |
| 2020 | 10 | 7 |
| 2021 | 11 | 4 |
| 2022 | 12 | 14 |
| 2023 | 15 | 17 |
| 2024 | 14 | 8 |
| 2025 | 9 | 11 |
| 2026 | 3 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Turbine assembly21 Jul 2026US 12,687,137 B2Korea Aerospace Research Institute
- Electric motor-integrated rocket engine pump21 Jul 2026US 12,687,169 B2Industry-University Cooperation Foundation Hanyang University Erica Campus
- Roll control thruster and hybrid rocket comprising same21 Apr 2026US 12,607,157 B2Innospace Co., Ltd.
- Turbo pump device for rocket engines16 Dec 2025US 12,497,935 B2
- Adjusting wait time between burn cycles or merging burn cycles28 Oct 2025US 12,456,557 B2Standard Nuclear, Inc.
- Disengagement test system and method for a pump13 Aug 2026US 2026/0235129 A1Xi'an Space Engine Company Limited
- Air turborocket apparatus with precooler heat exchanger at the air intake30 Jul 2026US 2026/0218670 A1Destinus SA
- Rocket engine using expander bleed cycle9 Jul 2026US 2026/0194030 A1
- Propellant supply system4 Jun 2026US 2026/0152295 A1Japan Aerospace Exploration Agency
- Turbine assembly28 May 2026US 2026/0146575 A1Korea Aerospace Research Institute
Most cited
By later US patents
- Microturbomachinery145US 5,932,940 AMassachusetts Institute of Technology · 1999
- Microturbomachinery113US 6,392,313 B1Massachusetts Institute of Technology · 2002
- Single flow turbopump with integrated boosting56US 5,232,333 ASociete Europeenne de Propulsion · 1993
- Electrical drive system for rocket engine propellant pumps49US 6,457,306 B1Lockheed Martin Corporation · 2002
- Liquid oxygen gasifying system for rocket engines44US 5,918,460 AUnited Technologies Corporation · 1999