F41A 3/26
Semi-automatically or automatically operated
Official title: semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt
F41A3/26 (Semi-automatically or automatically operated) appears on 298 US grants and 280 published applications in this corpus.
Search patents in F41A- Granted patents
- 298
- Published applications
- 280
- Assignees
- 109
- Inventors
- 312
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 5 |
| 2003 | 6 | 0 |
| 2004 | 2 | 0 |
| 2005 | 1 | 3 |
| 2006 | 1 | 1 |
| 2007 | 1 | 2 |
| 2008 | 2 | 4 |
| 2009 | 2 | 7 |
| 2010 | 6 | 7 |
| 2011 | 8 | 3 |
| 2012 | 4 | 12 |
| 2013 | 8 | 8 |
| 2014 | 11 | 12 |
| 2015 | 12 | 14 |
| 2016 | 16 | 13 |
| 2017 | 15 | 19 |
| 2018 | 17 | 20 |
| 2019 | 18 | 14 |
| 2020 | 21 | 24 |
| 2021 | 28 | 16 |
| 2022 | 13 | 25 |
| 2023 | 27 | 18 |
| 2024 | 21 | 21 |
| 2025 | 18 | 17 |
| 2026 | 5 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Slide assembly for a firearm14 Jul 2026US 12,680,770 B2Shadow Systems LLC
- Recoil assembly for a machine gun26 May 2026US 12,638,261 B2Sig Sauer, Inc.
- Small firearms and method of operating small firearms27 Jan 2026US 12,535,280 B2Schmeisser GmbH
- Multi-caliber firearm, a bolt and a barrel extension13 Jan 2026US 12,523,437 B2Ensio Firearms Oy
- Load balanced firearm barrel extension6 Jan 2026US 12,516,902 B1Knight's Armament Company
- Slide assembly for a firearm24 Sep 2026US 2026/0287286 A1Shadow Systems LLC
- Rotatable firearm bolt assembly and firearms including the same17 Sep 2026US 2026/0276342 A1
- Apparatus and methods for a bolt carrier assembly for direct gas operated firearms16 Jul 2026US 2026/0202152 A1SureFire, LLC
- Apparatus and methods for a bolt and extractor for direct gas operated firearms16 Jul 2026US 2026/0202153 A1SureFire, LLC
- Rifle Upper Receiver Components18 Jun 2026US 2026/0168747 A1
Most cited
By later US patents
- Open bolt conversion apparatus112US 4,057,003 A1977
- Gas actuated pistol94US 4,563,937 AMagnum Research, Inc. · 1986
- Gas-operated M16 pistol93US 5,448,940 AOlympic Arms, Inc. · 1995
- Monolithic rail platform and bolt assemblies for a firearm90US 8,234,808 B22012
- Bolt assembly for a firearm82US 6,182,389 B22001