F42B 3/124
Characterised by the configuration or material of the bridge
Official title: {characterised by the configuration or material of the bridge (F42B3/13 takes precedence)}
F42B3/124 (Characterised by the configuration or material of the bridge) appears on 152 US grants and 72 published applications in this corpus.
Search patents in F42B- Granted patents
- 152
- Published applications
- 72
- Assignees
- 89
- Inventors
- 298
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 9 | 0 |
| 2002 | 9 | 10 |
| 2003 | 3 | 4 |
| 2004 | 6 | 8 |
| 2005 | 3 | 3 |
| 2006 | 3 | 1 |
| 2007 | 1 | 2 |
| 2008 | 1 | 2 |
| 2009 | 3 | 2 |
| 2010 | 3 | 5 |
| 2011 | 3 | 0 |
| 2012 | 4 | 6 |
| 2013 | 3 | 4 |
| 2014 | 2 | 1 |
| 2015 | 3 | 4 |
| 2016 | 4 | 6 |
| 2017 | 5 | 2 |
| 2018 | 3 | 2 |
| 2019 | 8 | 1 |
| 2020 | 6 | 3 |
| 2021 | 8 | 0 |
| 2022 | 2 | 2 |
| 2023 | 5 | 2 |
| 2024 | 2 | 1 |
| 2025 | 3 | 0 |
| 2026 | 4 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Explosive foil initiator (EF) with enhanced detonation energy25 Aug 2026US 12,716,700 B2Raytheon Company
- Fuse assembly and method for assembling the same19 May 2026US 12,631,431 B1L3Harris Technologies, Inc.
- Explosive firing train with a single explosive transfer interface24 Feb 2026US 12,560,418 B1Raytheon Company
- Preload cable, detonator cable assembly, and methods of making the same20 Jan 2026US 12,529,547 B1Honeywell Federal Manufacturing & Technologies, LLC
- Non-explosive programmable electronic initiation system for rock blasting2 Dec 2025US 12,487,063 B2Comercializadora Exoblast Chile S.P.A.
- Explosive foil initiator (ef) with enhanced detonation energy21 May 2026US 2026/0139934 A1Raytheon Company
- Detonator For A Perforating Gun Assembly14 Mar 2024US 2024/0085162 A1XConnect, LLC
- Non-explosive programmable electronic initiation system for rock blasting21 Dec 2023US 2023/0408230 A1Comercializadora Exoblast Chile S.P.A.
- Ignition resistor and manufacturing method thereof26 Oct 2023US 2023/0343491 A1Viking Tech Corporation
- Circuit for controlling the firing of a pyrotechnic component3 Nov 2022US 2022/0349686 A1Nexter Munitions
Most cited
By later US patents
- 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
- Initiation of explosive devices91US 6,386,108 B12002
- Switches for use in tools84US 6,385,031 B1Schlumberger Technology Corporation · 2002
- Pyrotechnic detonator using coaxial connections70US 5,204,491 AThomson-Brandt Armements · 1993
- Photoetched-filament pyrotechnic initiator protected against electrostatic discharges65US 6,408,758 B1Livbag SNC · 2002