F42B 12/24
With grooves, recesses or other wall weakenings
Official title: with grooves, recesses or other wall weakenings {(F42B12/26, F42B12/28 take precedence)}
F42B12/24 (With grooves, recesses or other wall weakenings) appears on 104 US grants and 79 published applications in this corpus.
Search patents in F42B- Granted patents
- 104
- Published applications
- 79
- Assignees
- 53
- Inventors
- 197
- Latest grant
- 27 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 1 |
| 2003 | 1 | 2 |
| 2004 | 3 | 2 |
| 2005 | 1 | 2 |
| 2006 | 3 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 2 | 2 |
| 2010 | 2 | 2 |
| 2011 | 2 | 0 |
| 2012 | 2 | 7 |
| 2013 | 4 | 1 |
| 2014 | 3 | 5 |
| 2015 | 5 | 5 |
| 2016 | 5 | 10 |
| 2017 | 10 | 9 |
| 2018 | 9 | 5 |
| 2019 | 7 | 2 |
| 2020 | 6 | 4 |
| 2021 | 3 | 2 |
| 2022 | 4 | 4 |
| 2023 | 4 | 3 |
| 2024 | 5 | 3 |
| 2025 | 5 | 3 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Helical patterning on a curved surface for additive manufacturing of a fragmentation device27 Jan 2026US 12,536,347 B1Honeywell Federal Manufacturing & Technologies, LLC
- Explosive fragmentation structure with a fragment enhancing insensitive munitions (IM) liner23 Dec 2025US 12,504,261 B2Raytheon Company
- High-strength munitions structure with tailored fragmentation21 Oct 2025US 12,449,242 B1Washington State University
- Munition with directional projection explosive17 Jun 2025US 12,332,033 B2Raytheon Company
- Bullet with controlled fragmentation22 Apr 2025US 12,281,883 B2Hornady Manufacturing Company
- Self-Separating Bullet1 Oct 2026US 2026/0298598 A1The United States of America as represented by the Secretary of the Navy
- Bullet with controlled fragmentation17 Sep 2026US 2026/0276356 A1Hornady Manufacturing Company
- Multi-Point Initiation System for a Radial Multiple Shaped Charge Jet (MSCJ) Warhead18 Jun 2026US 2026/0168774 A1Raytheon Company
- Delivery of projectiles from a rifled bore4 Dec 2025US 2025/0369737 A1Federal Cartridge Company
- Explosive fragmentation structure with a fragment enhancing insensitive munitions (im) liner21 Aug 2025US 2025/0264313 A1Raytheon Company
Most cited
By later US patents
- Bullet with controlled fragmentation164US 9,658,042 B2Hornady Manufacturing Company · 2017
- Method of making a high-explosive projectile85US 6,502,515 B2Rheinmetall W & M GmbH · 2003
- Fragmentation warhead48US 6,484,642 B1The United States of America as represented by the Secretary of the Navy · 2002
- Fragmentation projectile34US 5,131,329 ARheinmetall GmbH · 1992
- Controlled fragmentation warhead32US 5,157,225 AThe United States of America as represented by the Secretary of the Navy · 1992