F41A 5/00
Mechanisms or systems operated by propellant charge energy for automatically opening the
Official title: Mechanisms or systems operated by propellant charge energy for automatically opening the lock
F41A5/00 (Mechanisms or systems operated by propellant charge energy for automatically opening the) appears on 881 US grants and 748 published applications in this corpus.
Search patents in F41A- Granted patents
- 881
- Published applications
- 748
- Assignees
- 274
- Inventors
- 894
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 11 | 0 |
| 1978 | 6 | 0 |
| 1979 | 9 | 0 |
| 1980 | 5 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 9 | 0 |
| 1984 | 6 | 0 |
| 1985 | 5 | 0 |
| 1986 | 7 | 0 |
| 1987 | 5 | 0 |
| 1988 | 1 | 0 |
| 1989 | 8 | 0 |
| 1990 | 11 | 0 |
| 1991 | 5 | 0 |
| 1992 | 6 | 0 |
| 1993 | 6 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 9 | 0 |
| 1999 | 9 | 0 |
| 2000 | 3 | 0 |
| 2001 | 6 | 4 |
| 2002 | 9 | 3 |
| 2003 | 8 | 6 |
| 2004 | 6 | 6 |
| 2005 | 6 | 16 |
| 2006 | 5 | 10 |
| 2007 | 7 | 6 |
| 2008 | 14 | 10 |
| 2009 | 8 | 12 |
| 2010 | 14 | 28 |
| 2011 | 25 | 26 |
| 2012 | 31 | 35 |
| 2013 | 27 | 22 |
| 2014 | 41 | 54 |
| 2015 | 48 | 45 |
| 2016 | 63 | 59 |
| 2017 | 39 | 55 |
| 2018 | 47 | 46 |
| 2019 | 62 | 54 |
| 2020 | 53 | 49 |
| 2021 | 50 | 41 |
| 2022 | 29 | 45 |
| 2023 | 45 | 32 |
| 2024 | 29 | 34 |
| 2025 | 40 | 26 |
| 2026 | 14 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Staked bolt carrier for a firearm1 Sep 2026US 12,723,827 B2Glock Technology GmbH
- Firearm25 Aug 2026US 12,716,666 B2
- Adjustable gas system25 Aug 2026US 12,716,670 B2Faxon Firearms, LLC
- Adjustable gas valve for firearm28 Jul 2026US 12,693,084 B2KNS Precision, Inc.
- Quick-release firearm gas block23 Jun 2026US 12,663,227 B1Ares Defense Systems, Inc.
- Gas Tube Apparatus and Method for Rifle17 Sep 2026US 2026/0276329 A1
- Anti-rotation gas block assembly17 Sep 2026US 2026/0276330 A103312004 LLC
- Tapered barrel guides for firearms3 Sep 2026US 2026/0259022 A1Eight Holdings LLC
- Firearm barrel having at least one barrel gas port and method of manufacturing the same20 Aug 2026US 2026/0243532 A1WHG Properties, LLC
- Assembly of a barrel, a container/frame and a breech block for self-loading pistols20 Aug 2026US 2026/0243535 A1Ceska Zbrojovka A.S.
Most cited
By later US patents
- Automatic rifle gas system170US 4,765,224 A1988
- Automatic pistol with counteracting spring control mechanism157US 4,539,889 A1985
- Rifle154US 6,848,351 B12005
- Law enforcement carbine with one piece receiver151US 7,775,150 B2Colt Defense LLC · 2010
- Gas-operated rifle system149US 5,351,598 AOlympic Arms, Inc. · 1994