F41A 21/40
Chokes for shotguns
Official title: Chokes for shotguns {, e.g. automatic chokes}
F41A21/40 (Chokes for shotguns) appears on 61 US grants and 38 published applications in this corpus.
Search patents in F41A- Granted patents
- 61
- Published applications
- 38
- Assignees
- 24
- Inventors
- 77
- Latest grant
- 16 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 2 | 1 |
| 2004 | 1 | 1 |
| 2005 | 1 | 1 |
| 2006 | 2 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 3 |
| 2011 | 1 | 3 |
| 2012 | 4 | 3 |
| 2013 | 1 | 0 |
| 2014 | 2 | 2 |
| 2015 | 1 | 1 |
| 2016 | 2 | 1 |
| 2017 | 0 | 3 |
| 2018 | 2 | 2 |
| 2019 | 4 | 3 |
| 2020 | 3 | 4 |
| 2021 | 3 | 2 |
| 2022 | 2 | 1 |
| 2023 | 1 | 2 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method and system for humanely dispatching wounded game16 Dec 2025US 12,495,805 B2
- Gun barrel assembly10 Dec 2024US 12,163,749 B2Benelli Armi S.P. A.
- Method and system for humanely dispatching wounded game7 Feb 2023US 11,570,996 B2Adrenal Line LLC
- Magazine cap choke adapter4 Oct 2022US 11,460,259 B2
- Muzzle adaptation system22 Feb 2022US 11,255,624 B2
- Method and system for humanely dispatching wounded game25 Jun 2026US 2026/0174087 A1
- Method and system for humanely dispatching wounded game8 Jun 2023US 2023/0172215 A1
- Gun barrel assembly18 May 2023US 2023/0152053 A1Benelli Armi S.P. A.
- Magazine cap choke adapter28 Jul 2022US 2022/0236024 A1Rhino Chokes & Gun Works, LLC
- Multi Bore Barrel for Pistol2 Dec 2021US 2021/0372727 A1Skychase Holdings Corporation
Most cited
By later US patents
- Gun22US 4,008,538 A1977
- Choke assembly for a shotgun21US 5,317,825 AC.G.I. Corporation · 1994
- Shotgun shell wad/shot cup retarding device21US 5,452,535 AImpromark, Inc. · 1995
- Concepts of remington super trap choke20US 4,058,925 ARemington Arms Company, Inc. · 1977
- Shotgun choke wrench and case18US 4,951,409 AQwikee Products, Inc. · 1990