F42B 3/02
Blasting cartridges, i.e. case and explosive: adapted to be united into assemblies
Official title: adapted to be united into assemblies
F42B3/02 (Blasting cartridges, i.e. case and explosive: adapted to be united into assemblies) appears on 133 US grants and 121 published applications in this corpus.
Search patents in F42B- Granted patents
- 133
- Published applications
- 121
- Assignees
- 60
- Inventors
- 211
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 2 | 3 |
| 2004 | 1 | 5 |
| 2005 | 4 | 5 |
| 2006 | 1 | 1 |
| 2007 | 4 | 2 |
| 2008 | 3 | 2 |
| 2009 | 1 | 6 |
| 2010 | 2 | 4 |
| 2011 | 7 | 5 |
| 2012 | 6 | 7 |
| 2013 | 1 | 3 |
| 2014 | 5 | 10 |
| 2015 | 5 | 4 |
| 2016 | 9 | 8 |
| 2017 | 3 | 4 |
| 2018 | 1 | 2 |
| 2019 | 11 | 5 |
| 2020 | 2 | 6 |
| 2021 | 11 | 12 |
| 2022 | 6 | 9 |
| 2023 | 10 | 6 |
| 2024 | 8 | 6 |
| 2025 | 5 | 2 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Triggering explosives in holes9 Jun 2026US 12,650,284 B2Olitek Pty Ltd
- Tandem sub for self-orienting perforating system21 Apr 2026US 12,607,102 B2Hunting Titan, Inc.
- Explosive downhole tools having improved wellbore conveyance and debris properties, methods of using the explosive downhole tools in a wellbore, and explosive units for explosive column tools13 Jan 2026US 12,523,107 B2W.T. Bell International, Inc.
- Propellant container for a perforating gun25 Nov 2025US 12,480,388 B2The GasGun, LLC
- Tandem sub for self-orienting perforating system7 Oct 2025US 12,435,605 B2Hunting Titan, Inc.
- Triggering explosives in holes17 Sep 2026US 2026/0276352 A1Olitek Pty Ltd
- Systems and methods for using explosive expansion downhole tools to reduce amount of undesirable fluids in hydrocarbons produced via a wellbore14 May 2026US 2026/0132693 A1
- Breaching Device with Tamping Gel14 May 2026US 2026/0133020 A1Esoteric, LLC
- Explosive breaching tool26 Mar 2026US 2026/0085917 A1United States Department of Energy
- Downhole system for conveying an explosive tool within a wellbore and reducing damage to other tools of the downhole system12 Jun 2025US 2025/0188810 A1
Most cited
By later US patents
- Detonation command and control92US 9,181,790 B2Los Alamos National Security, LLC · 2015
- Explosive device booster assembly and method of use86US 8,985,023 B2Halliburton Energy Services.Inc. · 2015
- Tool and process for stimulating a subterranean formation76US 4,798,244 A1989
- Controlling transient underbalance in a wellbore65US 6,732,798 B2Schlumberger Technology Corporation · 2004
- Non-explosive two component initiator55US 7,363,860 B2Weatherford/Lamb, Inc. · 2008