F41A 1/02
Hypervelocity missile propulsion using successive means for increasing the propulsive force
Official title: Hypervelocity missile propulsion using successive means for increasing the propulsive force, e.g. using successively initiated propellant charges arranged along the barrel length; Multistage missile propulsion
F41A1/02 (Hypervelocity missile propulsion using successive means for increasing the propulsive force) appears on 52 US grants and 35 published applications in this corpus.
Search patents in F41A- Granted patents
- 52
- Published applications
- 35
- Assignees
- 22
- Inventors
- 57
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 2 | 0 |
| 2009 | 0 | 2 |
| 2010 | 3 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 2 |
| 2013 | 1 | 1 |
| 2014 | 2 | 2 |
| 2015 | 1 | 3 |
| 2016 | 4 | 5 |
| 2017 | 5 | 3 |
| 2018 | 2 | 1 |
| 2019 | 2 | 4 |
| 2020 | 5 | 1 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
| 2023 | 3 | 3 |
| 2024 | 1 | 1 |
| 2025 | 3 | 3 |
| 2026 | 2 | 0 |
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
- Dynamic ram accelerator system5 May 2026US 12,618,623 B2Pipeline2Space, Inc.
- Vehicle launch system and method28 Oct 2025US 12,454,369 B2Innovative Integrated Technologies, LLC
- Mechanical velocity enhancement assembly22 Apr 2025US 12,281,865 B2
- Electrical velocity enhancement assembly21 Jan 2025US 12,203,714 B2
- Baffled start section for ram accelerator24 Jul 2025US 2025/0237443 A1University of Washington
- Ram accelerator sweeper baffles12 Jun 2025US 2025/0189251 A1University of Washington
- Vehicle launch system and method27 Feb 2025US 2025/0066041 A18 Rivers Capital, LLC
- Mechanical velocity enhancement assembly1 Feb 2024US 2024/0035761 A1
- Dynamic ram accelerator system28 Dec 2023US 2023/0417499 A1Pipeline2Space, Inc.
Most cited
By later US patents
- Multivalve hypervelocity launcher (MHL)44US 7,775,148 B12010
- Method of and apparatus for accelerating a projectile43US 4,590,842 AGT-Devices · 1986
- Method and apparatus for zero velocity start ram acceleration32US 5,097,743 AWashington Research Foundation · 1992
- Gun with combined operation by chemical propellant and plasma30US 5,233,903 AThe State of Israel, Atomic Energy Commission, Soreq Nuclear Research Center · 1993
- Method of and apparatus for deriving a high pressure, high temperature plasma jet with a dielectric capillary28US 5,033,355 AGT-Device · 1991