F41A 13/00
Cooling or heating systems
Official title: Cooling or heating systems; Blowing-through of gun barrels; Ventilating systems
F41A13/00 (Cooling or heating systems) appears on 149 US grants and 107 published applications in this corpus.
Search patents in F41A- Granted patents
- 149
- Published applications
- 107
- Assignees
- 79
- Inventors
- 220
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 1 |
| 2004 | 3 | 4 |
| 2005 | 3 | 2 |
| 2006 | 1 | 0 |
| 2007 | 0 | 3 |
| 2008 | 3 | 2 |
| 2009 | 2 | 3 |
| 2010 | 5 | 8 |
| 2011 | 4 | 2 |
| 2012 | 4 | 5 |
| 2013 | 7 | 6 |
| 2014 | 7 | 2 |
| 2015 | 3 | 4 |
| 2016 | 8 | 12 |
| 2017 | 9 | 8 |
| 2018 | 8 | 6 |
| 2019 | 7 | 12 |
| 2020 | 9 | 8 |
| 2021 | 8 | 3 |
| 2022 | 3 | 7 |
| 2023 | 8 | 2 |
| 2024 | 4 | 3 |
| 2025 | 6 | 3 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Heat shield for firearm suppressors and method11 Aug 2026US 12,704,336 B1
- Insulating quick interfacing firearm handguard accessory with elongated aperture23 Dec 2025US 12,504,248 B2XTech Tactical, LLC
- System for cooling automatic firearms and cannons28 Oct 2025US 12,455,133 B1
- Barrel cooling block for a semi-automatic rifle14 Oct 2025US 12,442,605 B1
- Multiple-barrel firearm and method of use9 Sep 2025US 12,410,982 B2TMP Weapons, LLC
- insulating quick interfacing firearm handguard accessory with elongated aperture27 Nov 2025US 2025/0362102 A1XTech Tactical, LLC
- Barrel cooler16 Oct 2025US 2025/0321067 A1Product Design and Manufacturing, Inc.
- Multiple-barrel firearm and method of use26 Jun 2025US 2025/0207882 A1TMP Weapons, LLC
- Cooling Device for a Gun Barrel15 Aug 2024US 2024/0271896 A1Eck Fabrication LLC
- Gas shell and gas-filled barrel to increase exit velocity of a projectile25 Apr 2024US 2024/0133645 A1
Most cited
By later US patents
- Rifle handguard assembly having outer shell with outer and inner liners161US 4,663,875 AColt Industries Inc. · 1987
- Automatic or semi-automatic rifle121US 8,051,595 B2Colt Defense LLC · 2011
- Modular fore-end rail/hand guard assembly system for firearms with selectable heat dissipation characteristics46US 8,448,367 B2Samson Manufacturing Corporation · 2013
- Stock assembly kit and rifle embodying the same45US 4,663,876 A1987
- Automatic or semi-automatic rifle44US 8,640,372 B2Colt Defense LLC · 2014