F41A 19/42
Having at least one hammer
Official title: having at least one hammer
F41A19/42 (Having at least one hammer) appears on 454 US grants and 322 published applications in this corpus.
Search patents in F41A- Granted patents
- 454
- Published applications
- 322
- Assignees
- 181
- Inventors
- 540
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 11 | 0 |
| 1978 | 6 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 7 | 0 |
| 1983 | 5 | 0 |
| 1984 | 8 | 0 |
| 1985 | 4 | 0 |
| 1986 | 8 | 0 |
| 1987 | 9 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 7 | 0 |
| 1991 | 1 | 0 |
| 1992 | 6 | 0 |
| 1993 | 7 | 0 |
| 1994 | 6 | 0 |
| 1995 | 9 | 0 |
| 1996 | 3 | 0 |
| 1997 | 8 | 0 |
| 1998 | 8 | 0 |
| 1999 | 7 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 0 |
| 2002 | 8 | 2 |
| 2003 | 6 | 3 |
| 2004 | 5 | 4 |
| 2005 | 3 | 15 |
| 2006 | 2 | 10 |
| 2007 | 11 | 6 |
| 2008 | 5 | 5 |
| 2009 | 3 | 9 |
| 2010 | 4 | 12 |
| 2011 | 14 | 12 |
| 2012 | 12 | 7 |
| 2013 | 7 | 8 |
| 2014 | 7 | 7 |
| 2015 | 21 | 15 |
| 2016 | 8 | 10 |
| 2017 | 18 | 20 |
| 2018 | 16 | 22 |
| 2019 | 25 | 20 |
| 2020 | 30 | 30 |
| 2021 | 20 | 18 |
| 2022 | 13 | 20 |
| 2023 | 19 | 23 |
| 2024 | 24 | 13 |
| 2025 | 15 | 19 |
| 2026 | 12 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Mechanism disassembly device for weapons with bolt mechanism1 Sep 2026US 12,723,828 B2
- Trigger mechanism1 Sep 2026US 12,723,829 B1
- Firearm trigger mechanism installation device and method28 Jul 2026US 12,693,087 B2CMC Triggers Corp.
- Firearm operating system2 Jun 2026US 12,644,661 B2
- Firearms with an ambidextrous slide stop and/or relief24 Mar 2026US 12,584,712 B2Oa Defense LLC
- Firearm trigger mechanism and method23 Jul 2026US 2026/0210654 A1
- Ammunition convertible firearm16 Jul 2026US 2026/0202154 A1Ares Defense Systems, Inc.
- Firearms with an ambidextrous slide stop and/or relief9 Jul 2026US 2026/0194328 A1
- Mechanism disassembly device for weapons with bolt mechanism25 Jun 2026US 2026/0177336 A1Ata Silah Sanayi Anonim Sirketi
- Firearm trigger18 Jun 2026US 2026/0168753 A1Polaris Capital Corporation
Most cited
By later US patents
- Automatic pistol with counteracting spring control mechanism157US 4,539,889 A1985
- Open bolt conversion apparatus112US 4,057,003 A1977
- Automatic pistol102US 4,825,744 A1989
- Four position firearm fire control selector97US 5,760,328 AColt's Manufacturing Company Inc. · 1998
- Trigger mechanism97US 6,615,527 B12003