F02K 9/70
Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor: using semi-
Official title: using semi- solid or pulverulent propellants
F02K9/70 (Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor: using semi-) appears on 21 US grants and 13 published applications in this corpus.
Search patents in F02K- Granted patents
- 21
- Published applications
- 13
- Assignees
- 16
- Inventors
- 54
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 2 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 2 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 2 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 2 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 2 | 2 |
| 2022 | 2 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for rocket propulsion including rocket motor using powder monopropellant14 Apr 2026US 12,601,313 B2Powder Fuels Ltd
- High density hybrid rocket motor17 Oct 2023US 11,787,752 B2Terves, LLC
- Multi-pulse gas generator device and igniter with varied flow rates16 Aug 2022US 11,415,081 B2Mitsubishi Heavy Industries, Ltd.
- Multi-pulse rocket propulsion motor7 Jun 2022US 11,352,981 B1Exquadrum, Inc.
- Nuclear energy, metal fuel, H2 / O2 from H2O, with MHD power and propulsion for one month astronaut rocket voyages to Mars26 Oct 2021US 11,156,187 B2
- Systems and methods for rocket propulsion including rocket motor using powder monopropellant31 Jul 2025US 2025/0243828 A1Powder Fuels Ltd
- Multipulse rocket motor with pressure-equalizing channels23 May 2024US 2024/0167435 A1Raytheon Company
- High density hybrid rocket motor16 Dec 2021US 2021/0387927 A1Terves, LLC
- Multi-pulse gas generator device23 Sep 2021US 2021/0293205 A1Mitsubishi Heavy Industries, Ltd.
- Nuclear thermal propulsion rocket engine17 Oct 2019US 2019/0315498 A1Hardy Engineering & Manufacturing, Inc.
Most cited
By later US patents
- Propulsion system208US 6,357,357 B1Alliant Techsystems Inc. · 2002
- Gel/solid bipropellant propulsion system with energy management capability26US 5,133,183 AThe United States of America as represented by the Secretary of the Army · 1992
- Nuclear thermal propulsion rocket engine15US 9,346,565 B12016
- Rocket assisted projectile8US 3,942,443 AThiokol Corporation · 1976
- Multi component propulsion system and method8US 4,214,439 AThe United States of America as represented by the Secretary of the Navy · 1980