F41A 21/38
Adjustable , i.e. the vent holes or the vent area being adjustable
Official title: adjustable {, i.e. the vent holes or the vent area being adjustable}
F41A21/38 (Adjustable , i.e. the vent holes or the vent area being adjustable) appears on 46 US grants and 42 published applications in this corpus.
Search patents in F41A- Granted patents
- 46
- Published applications
- 42
- Assignees
- 22
- Inventors
- 70
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 2 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 2 |
| 2011 | 1 | 2 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 1 | 3 |
| 2016 | 1 | 4 |
| 2017 | 4 | 2 |
| 2018 | 3 | 4 |
| 2019 | 1 | 3 |
| 2020 | 3 | 6 |
| 2021 | 4 | 4 |
| 2022 | 4 | 2 |
| 2023 | 4 | 1 |
| 2024 | 1 | 2 |
| 2025 | 2 | 2 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electronically controlled recoil positioning (ECRP) system for firearms11 Aug 2026US 12,704,342 B1
- Tuner attached to a muzzle brake or suppressor of a firearm14 Jul 2026US 12,680,776 B2
- Muzzle brake assembly14 Jul 2026US 12,680,777 B2BAE SYSTEMS plc
- Compensator partition14 Oct 2025US 12,442,613 B2Sig Sauer, Inc.
- Muzzle device assemblies15 Jul 2025US 12,359,886 B2
- Compensator for aerial platform payload14 May 2026US 2026/0133004 A1Sig Sauer, Inc.
- Muzzle brake assembly19 Mar 2026US 2026/0078975 A1BAE SYSTEMS plc
- Tuner attached to a muzzle brake or suppressor of a firearm9 Jan 2025US 2025/0012536 A1
- Compensator partition2 Jan 2025US 2025/0003710 A1Sig Sauer, Inc.
- Muzzle device assemblies22 Aug 2024US 2024/0280340 A1
Most cited
By later US patents
- Muzzle brake and flash hider101US 5,092,223 A1992
- Silenced hand-held firearm with rotating tube and sleeve51US 4,501,189 AHeckler & Koch GmbH · 1985
- Dually-adjustable firearm muzzle attachment device36US 4,813,333 AAccura Technology Corporation · 1989
- Recoil and muzzle blast dissipator35US 7,143,680 B22006
- Muzzle brake for firearms34US 5,020,416 APantera Armory, Inc. · 1991