F41A 3/36
Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt
Official title: Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing
F41A3/36 (Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt) appears on 250 US grants and 186 published applications in this corpus.
Search patents in F41A- Granted patents
- 250
- Published applications
- 186
- Assignees
- 90
- Inventors
- 282
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 7 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 1 |
| 2003 | 4 | 4 |
| 2004 | 3 | 2 |
| 2005 | 2 | 11 |
| 2006 | 3 | 1 |
| 2007 | 6 | 7 |
| 2008 | 1 | 0 |
| 2009 | 2 | 8 |
| 2010 | 8 | 8 |
| 2011 | 6 | 6 |
| 2012 | 9 | 1 |
| 2013 | 4 | 5 |
| 2014 | 6 | 5 |
| 2015 | 4 | 16 |
| 2016 | 11 | 10 |
| 2017 | 13 | 7 |
| 2018 | 8 | 9 |
| 2019 | 11 | 16 |
| 2020 | 16 | 12 |
| 2021 | 13 | 8 |
| 2022 | 5 | 16 |
| 2023 | 16 | 6 |
| 2024 | 8 | 13 |
| 2025 | 9 | 7 |
| 2026 | 8 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Rifle Upper Receiver Components18 Jun 2026US 2026/0168747 A1
- A New Locked Breech Mechanism For Firearms18 Jun 2026US 2026/0168748 A1
- Rifle Upper Receiver Components18 Jun 2026US 2026/0168749 A1
- Roller delayed firearm operating system23 Apr 2026US 2026/0110505 A1
- Rifle with straight pull bolt action26 Feb 2026US 2026/0055978 A1Savage Arms, Inc.
Most cited
By later US patents
- Ambidextrous bolt catch for firearms115US 7,661,219 B1Knight's Armament Company · 2010
- Gas operated action for auto-loading firearms111US 6,971,202 B22005
- Low-recoil firearm with noncircular guide rod for angularly locating bolt carrier assembly94US 4,553,469 A1985
- Underbarrel shotgun91US 6,418,655 B12002
- Monolithic rail platform and bolt assemblies for a firearm90US 8,234,808 B22012