F42B 3/10
Initiators therefor
Official title: Initiators therefor (percussion fuzes F42C7/00; percussion caps F42C19/10; electric primers F42C19/12)
F42B3/10 (Initiators therefor) appears on 1,206 US grants and 756 published applications in this corpus.
Search patents in F42B- Granted patents
- 1,206
- Published applications
- 756
- Assignees
- 428
- Inventors
- 1,988
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 17 | 0 |
| 1977 | 12 | 0 |
| 1978 | 7 | 0 |
| 1979 | 6 | 0 |
| 1980 | 7 | 0 |
| 1981 | 18 | 0 |
| 1982 | 14 | 0 |
| 1983 | 15 | 0 |
| 1984 | 10 | 0 |
| 1985 | 8 | 0 |
| 1986 | 10 | 0 |
| 1987 | 15 | 0 |
| 1988 | 15 | 0 |
| 1989 | 24 | 0 |
| 1990 | 21 | 0 |
| 1991 | 23 | 0 |
| 1992 | 27 | 0 |
| 1993 | 21 | 0 |
| 1994 | 24 | 0 |
| 1995 | 22 | 0 |
| 1996 | 20 | 0 |
| 1997 | 22 | 0 |
| 1998 | 25 | 0 |
| 1999 | 25 | 0 |
| 2000 | 20 | 0 |
| 2001 | 41 | 6 |
| 2002 | 30 | 37 |
| 2003 | 36 | 33 |
| 2004 | 27 | 47 |
| 2005 | 24 | 39 |
| 2006 | 22 | 25 |
| 2007 | 20 | 24 |
| 2008 | 14 | 29 |
| 2009 | 17 | 20 |
| 2010 | 28 | 25 |
| 2011 | 23 | 23 |
| 2012 | 37 | 35 |
| 2013 | 22 | 29 |
| 2014 | 26 | 22 |
| 2015 | 30 | 29 |
| 2016 | 35 | 41 |
| 2017 | 39 | 30 |
| 2018 | 30 | 27 |
| 2019 | 35 | 34 |
| 2020 | 35 | 32 |
| 2021 | 39 | 34 |
| 2022 | 31 | 40 |
| 2023 | 33 | 25 |
| 2024 | 37 | 32 |
| 2025 | 40 | 25 |
| 2026 | 27 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F42B 3/12Bridge initiators528
- F42B 3/103Mounting initiator heads in initiators219
- F42B 3/18Safety initiators resistant to premature firing by static electricity or stray currents203
- F42B 3/195Manufacture154
- F42B 3/113Activated by optical means126
- F42B 3/11Characterised by the material used63
- F42B 3/16Pyrotechnic delay initiators58
- F42B 3/14Spark initiators26
All 10 subgroupsShow fewer
Recent patents
- Compact encapsulated exploding foil initiator assembly8 Sep 2026US 12,729,937 B1Reynolds Systems, Inc.
- Sealing structure of sealed container, formation method therefor, gas generator using sealing structure of sealed container, and manufacturing method therefor1 Sep 2026US 12,722,591 B2Daicel Corporation
- Directed energy ignition of standard primers1 Sep 2026US 12,723,858 B2MegaWatt Lasers, Inc.
- Explosive foil initiator (EF) with enhanced detonation energy25 Aug 2026US 12,716,700 B2Raytheon Company
- Linear shaped charge electro-explosive (LSCe) device with a backside boosted initiation18 Aug 2026US 12,710,255 B1Raytheon Company
- Modular exploding foil initiator assembly1 Oct 2026US 2026/0298592 A1Reynolds Systems, Inc.
- Triggering explosives in holes17 Sep 2026US 2026/0276352 A1Olitek Pty Ltd
- Linear shaped charge electro-explosive (lsce) device with a backside boosted initiation20 Aug 2026US 2026/0243550 A1Raytheon Company
- Multi-atmospheric safe firing control circuit for wireless detonators and initiators2 Jul 2026US 2026/0185811 A1Down Range Systems LLC
- ETBI (Electronic Thermal Battery Initiator) Firing Time Data Recorder with Acceleration Monitoring11 Jun 2026US 2026/0160525 A1BAE Systems Information and Electronic Systems Integration Inc.
Most cited
By later US patents
- Electric primer219US 6,272,993 B1RA Brands, L.L.C. · 2001
- Laser range finding apparatus199US 5,669,174 A1997
- Modular laser apparatus185US 5,584,137 A1996
- Detonator actuator151US 5,090,321 AICI Australia Limited · 1992
- Method and apparatus for safe transport handling arming and firing of perforating guns using a bubble activated detonator146US 5,088,413 ASchlumberger Technology Corporation · 1992