F42D 1/042
Logic explosive circuits
Official title: {Logic explosive circuits, e.g. with explosive diodes}
F42D1/042 (Logic explosive circuits) appears on 30 US grants and 22 published applications in this corpus.
Search patents in F42D- Granted patents
- 30
- Published applications
- 22
- Assignees
- 15
- Inventors
- 53
- Latest grant
- 7 Jun 2022
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 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 6 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 5 |
| 2015 | 2 | 2 |
| 2016 | 3 | 2 |
| 2017 | 4 | 3 |
| 2018 | 0 | 1 |
| 2019 | 3 | 1 |
| 2020 | 1 | 1 |
| 2021 | 2 | 2 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Automatic method and apparatus for logging preprogrammed electronic detonators7 Jun 2022US 11,353,307 B2Austin Star Detonator Company
- Automatic method and apparatus for logging preprogrammed electronic detonators8 Jun 2021US 11,029,135 B2Austin Star Detonator Company
- Detonator12 Jan 2021US 10,890,426 B2Detnet South Africa (Pty) Ltd
- Detonator7 Jan 2020US 10,527,395 B2Detnet South Africa (Pty) Ltd
- Detonation control8 Oct 2019US 10,436,005 B2Triad National Security, LLC
- Multi-atmospheric safe firing control circuit for wireless detonators and initiators2 Jul 2026US 2026/0185811 A1Down Range Systems LLC
- Payload deployment safety system for avalanche control using an unmanned aircraft system5 Mar 2026US 2026/0062124 A1Drone Amplified, Inc.
- Modular breaching device and kit5 Feb 2026US 2026/0036413 A1
- Automatic method and apparatus for logging preprogrammed electronic detonators23 Sep 2021US 2021/0293518 A1Austin Star Detonator Company
- Ignition system including electronic detonators8 Apr 2021US 2021/0102792 A1Davey Bickford
Most cited
By later US patents
- Detonation command and control92US 9,181,790 B2Los Alamos National Security, LLC · 2015
- Explosive diode transfer system for a modular perforating apparatus66US 5,216,197 ASchlumberger Technology Corporation · 1993
- Detonation command and control23US 9,835,428 B2Los Alamos National Security, LLC · 2017
- Detonation command and control18US 9,354,029 B2Los Alamos National Security, LLC · 2016
- Safe rocket motor igniter using sequenced initiation to an explosive logic network14US 3,973,499 AThe United States of America as represented by the Secretary of the Navy · 1976