F41A 1/04
Missile propulsion using the combustion of a liquid, loose powder or gaseous
Official title: Missile propulsion using the combustion of a liquid, {loose powder} or gaseous fuel, e.g. hypergolic fuel
F41A1/04 (Missile propulsion using the combustion of a liquid, loose powder or gaseous) appears on 173 US grants and 57 published applications in this corpus.
Search patents in F41A- Granted patents
- 173
- Published applications
- 57
- Assignees
- 51
- Inventors
- 206
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 13 | 0 |
| 1978 | 7 | 0 |
| 1979 | 8 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 5 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 7 | 0 |
| 1988 | 5 | 0 |
| 1989 | 4 | 0 |
| 1990 | 15 | 0 |
| 1991 | 10 | 0 |
| 1992 | 6 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 5 |
| 2005 | 2 | 0 |
| 2006 | 0 | 3 |
| 2007 | 2 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 4 | 2 |
| 2011 | 3 | 1 |
| 2012 | 3 | 3 |
| 2013 | 0 | 0 |
| 2014 | 2 | 4 |
| 2015 | 2 | 3 |
| 2016 | 4 | 7 |
| 2017 | 3 | 3 |
| 2018 | 4 | 1 |
| 2019 | 4 | 3 |
| 2020 | 6 | 5 |
| 2021 | 1 | 3 |
| 2022 | 3 | 2 |
| 2023 | 2 | 2 |
| 2024 | 5 | 1 |
| 2025 | 1 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Ram accelerator sweeper baffles18 Aug 2026US 12,710,243 B2University of Washington
- Fuel powered paintball marker22 Jul 2025US 12,366,423 B2War Machine, Inc.
- Gas shell and gas-filled barrel to increase exit velocity of a projectile31 Dec 2024US 12,181,233 B2
- Airborne weapon system29 Oct 2024US 12,130,102 B1
- Combustion gun17 Sep 2024US 12,092,408 B2
- Launch structure ejection mechanism3 Sep 2026US 2026/0259021 A1Northrop Grumman Systems Corporation
- Fuel powered paint ball marker16 Oct 2025US 2025/0321065 A1War Machine, Inc.
- Ram accelerator sweeper baffles12 Jun 2025US 2025/0189251 A1University of Washington
- Fuel powered paintball marker3 Apr 2025US 2025/0109917 A1War Machine, Inc.
- Gas shell and gas-filled barrel to increase exit velocity of a projectile25 Apr 2024US 2024/0133645 A1
Most cited
By later US patents
- Fluid propellant projectile firing device54US 4,148,245 ABtgco · 1979
- Wake stabilized supersonic combustion ram cannon44US 4,726,279 AUnited Technologies Corporation · 1988
- Multivalve hypervelocity launcher (MHL)44US 7,775,148 B12010
- Extendable ram cannon38US 4,722,261 AUnited Technologies Corporation · 1988
- In-line annular piston fixed bolt regenerative liquid propellant gun37US 4,523,508 AGeneral Electric Company · 1985