F02K 9/38
Safety devices
Official title: Safety devices, e.g. to prevent accidental ignition
F02K9/38 (Safety devices) appears on 96 US grants and 47 published applications in this corpus.
Search patents in F02K- Granted patents
- 96
- Published applications
- 47
- Assignees
- 47
- Inventors
- 192
- Latest grant
- 28 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 1 |
| 2002 | 3 | 1 |
| 2003 | 2 | 2 |
| 2004 | 2 | 4 |
| 2005 | 3 | 2 |
| 2006 | 3 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 2 | 1 |
| 2010 | 2 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 2 | 2 |
| 2014 | 0 | 3 |
| 2015 | 1 | 2 |
| 2016 | 5 | 0 |
| 2017 | 3 | 6 |
| 2018 | 1 | 3 |
| 2019 | 2 | 3 |
| 2020 | 6 | 3 |
| 2021 | 3 | 3 |
| 2022 | 2 | 2 |
| 2023 | 1 | 2 |
| 2024 | 4 | 2 |
| 2025 | 1 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Rocket motor including an embedded charge assembly (ECA) configured to support a burn rate enhancement (BRE) wire28 Oct 2025US 12,454,929 B1Raytheon Company
- Electrochemical rocket motor13 Aug 2024US 12,060,852 B2The Aerospace Corporation
- Multi-pulse propulsion system with passive initiation21 May 2024US 11,988,173 B2Raytheon Company
- Compact safety ignition device for dual pulse motor9 Apr 2024US 11,952,966 B2Agency for Defense Developement
- Safety ignition device for high altitude dual pulse motor including the same9 Apr 2024US 11,952,968 B2Agency for Defense Development
- Rocket motor with dual embedded burnable cutting explosive energetic material26 Feb 2026US 2026/0055746 A1Raytheon Company
- Solid-propellant thruster with an integrated control means and system for controlling ageing of the thruster30 Jan 2025US 2025/0035507 A1
- Multipulse rocket motor with pressure-equalizing channels23 May 2024US 2024/0167435 A1Raytheon Company
- Safety ignition device for high altitude dual pulse motor including the same25 Jan 2024US 2024/0026840 A1Agency for Defense Development
- Compact safety ignition device for dual pulse motor21 Dec 2023US 2023/0407818 A1Agency for Defense Developement
Most cited
By later US patents
- Method and apparatus for providing an insensitive munition54US 5,311,820 AThiokol Corporation · 1994
- Pressure vessel penetrator30US 4,478,151 AThe United States of America as represented by the Secretary of the Navy · 1984
- Safety mechanism for rendering a rocket motor non-propulsive30US 5,044,154 AThiokol Corporation · 1991
- Pressure relief device for solid propellant motors subjected to high external temperatures27US 5,036,658 AThe United States of America as represented by the Secretary of the Army · 1991
- Intermetallic thermal sensor27US 5,466,537 AThe United States of America as represented by the Secretary of the Navy · 1995