F41A 21/24
Barrels or gun tubes with fins or ribs
Official title: Barrels or gun tubes with fins or ribs, e.g. for cooling (F41G1/42 takes precedence)
F41A21/24 (Barrels or gun tubes with fins or ribs) appears on 66 US grants and 75 published applications in this corpus.
Search patents in F41A- Granted patents
- 66
- Published applications
- 75
- Assignees
- 40
- Inventors
- 100
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 2 | 1 |
| 2007 | 0 | 0 |
| 2008 | 2 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 2 |
| 2011 | 2 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 2 | 3 |
| 2015 | 3 | 3 |
| 2016 | 4 | 8 |
| 2017 | 2 | 7 |
| 2018 | 1 | 3 |
| 2019 | 6 | 8 |
| 2020 | 8 | 7 |
| 2021 | 5 | 1 |
| 2022 | 1 | 5 |
| 2023 | 5 | 8 |
| 2024 | 7 | 5 |
| 2025 | 6 | 3 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Heat shield for firearm suppressors and method11 Aug 2026US 12,704,336 B1
- System for cooling automatic firearms and cannons5 May 2026US 12,618,629 B2
- Firearm3 Mar 2026US 12,566,040 B2Staccato 2011, LLC
- Firearm barrel27 Jan 2026US 12,535,307 B2Franklin Armory Holdings, Inc.
- Firearm barrel for lever action firearm11 Nov 2025US 12,467,707 B2Blackstone Firearms, LLC
- Firearm25 Jun 2026US 2026/0177343 A1Staccato 2011, LLC
- System for cooling automatic firearms and cannons30 Apr 2026US 2026/0118082 A1
- System for cooling automatic firearms and cannons30 Apr 2026US 2026/0118083 A1
- Firearm barrel2 Oct 2025US 2025/0305805 A1Franklin Armory Holdings, Inc.
- Firearm Barrel for Lever Action Firearm21 Aug 2025US 2025/0264288 A1Blackstone Firearms, LLC
Most cited
By later US patents
- Heat exchanger barrel nut53US 7,464,496 B12008
- High performance gun barrel43US 5,355,765 A1994
- Heat sink for firearm barrels and method for attachment and use42US 6,508,159 B12003
- Sound suppressor cooling system42US 8,967,325 B12015
- Fluted firearm barrel27US 8,025,003 B1The United States of America as represented by the Secretary of the Navy · 2011