F42B 12/34
Expanding before or on impact, i.e. of dumdum or mushroom type
Official title: expanding before or on impact, i.e. of dumdum or mushroom type
F42B12/34 (Expanding before or on impact, i.e. of dumdum or mushroom type) appears on 439 US grants and 373 published applications in this corpus.
Search patents in F42B- Granted patents
- 439
- Published applications
- 373
- Assignees
- 144
- Inventors
- 491
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 6 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 7 | 0 |
| 1993 | 7 | 0 |
| 1994 | 8 | 0 |
| 1995 | 7 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 11 | 1 |
| 2002 | 5 | 4 |
| 2003 | 8 | 16 |
| 2004 | 13 | 12 |
| 2005 | 8 | 14 |
| 2006 | 6 | 7 |
| 2007 | 11 | 13 |
| 2008 | 9 | 12 |
| 2009 | 5 | 5 |
| 2010 | 8 | 8 |
| 2011 | 9 | 9 |
| 2012 | 13 | 14 |
| 2013 | 11 | 8 |
| 2014 | 13 | 18 |
| 2015 | 22 | 27 |
| 2016 | 34 | 30 |
| 2017 | 17 | 20 |
| 2018 | 14 | 23 |
| 2019 | 24 | 21 |
| 2020 | 19 | 20 |
| 2021 | 14 | 20 |
| 2022 | 27 | 17 |
| 2023 | 17 | 17 |
| 2024 | 16 | 20 |
| 2025 | 17 | 11 |
| 2026 | 6 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Projectile22 Sep 2026US D1,148,948 S1G9 Holdings, LLC · Design
- Customizable projectile designed to tumble11 Aug 2026US 12,704,362 B1Rekon, LLC
- Projectile11 Aug 2026US D1,141,052 S1G9 Holdings, LLC · Design
- Projectile with a tapered structure within a forward cavity26 May 2026US 12,638,279 B1Liberty OPCO, LLC
- Tool and method for producing a projectile and projectile20 Jan 2026US 12,529,549 B2RWS GmbH
- Expandable projectile1 Oct 2026US 2026/0298600 A1Sig Sauer, Inc.
- Bullet with controlled fragmentation17 Sep 2026US 2026/0276356 A1Hornady Manufacturing Company
- Anti-drone cartridge and bullet6 Aug 2026US 2026/0227163 A1
- Electric circuit breaker device25 Jun 2026US 2026/0177365 A1Daicel Corporation
- Projectile with insert18 Jun 2026US 2026/0168775 A1Diversified Industrial Technology, Inc.
Most cited
By later US patents
- Projectile for fire arms227US 8,511,233 B2Norma Precision AB · 2013
- Partial fragmentation and deformation bullets having an identical point of impact225US 7,299,750 B2Ruag Ammotec GmbH · 2007
- Longitudinally sectioned firearms projectiles216US 9,255,775 B12016
- Lead free reduced ricochet limited penetration projectile207US 7,353,756 B2AccuTec USA · 2008
- Multi-component bullet with core retention feature and method of manufacturing the bullet204US 9,366,512 B2RA Brands, L.L.C. · 2016