F42B 3/117
Activated by friction
Official title: activated by friction
F42B3/117 (Activated by friction) appears on 10 US grants and 5 published applications in this corpus.
Search patents in F42B- Granted patents
- 10
- Published applications
- 5
- Assignees
- 5
- Inventors
- 25
- Latest grant
- 8 Oct 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 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 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 1 |
| 2018 | 1 | 1 |
| 2019 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Fuse assembly for a munition8 Oct 2019US 10,436,561 B23Rd Light Limited
- Collapse initiated explosive pellet5 Feb 2019US 10,196,894 B2Schlumberger Technology Corporation
- Igniter31 Jul 2018US 10,036,618 B2Daicel Corporation
- Explosive pellet10 May 2016US 9,334,719 B2Schlumberger Technology Corporation
- MEMS mechanical initiator for a microdetonator27 Jul 2010US 7,762,190 B1The United States of America as represented by the Secretary of the Navy
- Fuse assembly for a munition14 Feb 2019US 2019/0049224 A13Rd Light Limited
- Igniter8 Nov 2018US 2018/0321019 A1Daicel Corporation
- Igniter7 Dec 2017US 2017/0350679 A1Daicel Corporation
- Collapse initiated explosive pellet24 Nov 2016US 2016/0341035 A1Schlumberger Technology Corporation
- Explosive pellet7 Feb 2013US 2013/0032337 A1Schlumberger Technology Corporation
Most cited
By later US patents
- High altitude friction igniter12US 3,942,445 AThe United States of America as represented by the Secretary of the Navy · 1976
- Weatherproof safety fuse igniter11US 4,846,067 A1989
- Needleless syringe with a friction activated pyrotechnic initiator11US 6,537,245 B1Crossject · 2003
- Pull-wire igniter for flares10US 5,313,888 A1994
- Explosive pellet7US 9,334,719 B2Schlumberger Technology Corporation · 2016