F42C 15/32
Operated by change of fluid pressure
Official title: operated by change of fluid pressure (F42C5/00, F42C15/29 take precedence)
F42C15/32 (Operated by change of fluid pressure) appears on 36 US grants and 19 published applications in this corpus.
Search patents in F42C- Granted patents
- 36
- Published applications
- 19
- Assignees
- 17
- Inventors
- 67
- Latest grant
- 8 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 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 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 2 | 3 |
| 2009 | 0 | 0 |
| 2010 | 1 | 3 |
| 2011 | 2 | 2 |
| 2012 | 3 | 1 |
| 2013 | 2 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 2 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 5 |
| 2023 | 3 | 0 |
| 2024 | 2 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Pressure activated battery system8 Apr 2025US 12,272,844 B1The United States of America as represented by the Secretary of the Army
- Programmable system and method for a munition31 Dec 2024US 12,181,264 B2BAE SYSTEMS plc
- Munitions and projectiles24 Dec 2024US 12,173,995 B2BAE SYSTEMS plc
- Techniques suitable for use with an object for moving through a fluid, such as a munition or reconnaissance projectile19 Dec 2023US 11,846,496 B2BAE SYSTEMS plc
- Safety and arming unit4 Jul 2023US 11,692,800 B2Saab Dynamics AB
- Safety and arming unit9 Jun 2022US 2022/0178668 A1Saab Dynamics AB
- Techniques suitable for use with an object for moving through a fluid, such as a munition or reconnaissance projectile21 Apr 2022US 2022/0120546 A1BAE SYSTEMS plc
- Munitions and projectiles3 Mar 2022US 2022/0065597 A1BAE SYSTEMS plc
- Fuze arming techniques for a submunition3 Mar 2022US 2022/0065604 A1BAE SYSTEMS plc
- Programmable system and method for a munition17 Feb 2022US 2022/0049943 A1BAE SYSTEMS plc
Most cited
By later US patents
- Safety device to prevent premature firing of explosive well tools52US 5,165,489 A1992
- Methods and apparatuses for electronic time delay and systems including same41US 7,789,153 B2Alliant Techsystems Inc. · 2010
- Perforation gun pressure-actuated electrical switches and methods of use25US 7,902,469 B22011
- Surface safe explosive tool21US 8,113,119 B2Halliburton Energy Services.Inc. · 2012
- Fluid activated detonating system16US 5,632,348 AConoco Inc. · 1997