F41A 21/02
Composite barrels, i.e. barrels having multiple layers
Official title: Composite barrels, i.e. barrels having multiple layers, e.g. of different materials
F41A21/02 (Composite barrels, i.e. barrels having multiple layers) appears on 192 US grants and 168 published applications in this corpus.
Search patents in F41A- Granted patents
- 192
- Published applications
- 168
- Assignees
- 107
- Inventors
- 287
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 5 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 6 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 2 |
| 2002 | 6 | 6 |
| 2003 | 6 | 4 |
| 2004 | 5 | 5 |
| 2005 | 1 | 5 |
| 2006 | 2 | 2 |
| 2007 | 1 | 3 |
| 2008 | 1 | 1 |
| 2009 | 1 | 4 |
| 2010 | 7 | 4 |
| 2011 | 6 | 11 |
| 2012 | 6 | 6 |
| 2013 | 5 | 2 |
| 2014 | 6 | 4 |
| 2015 | 7 | 9 |
| 2016 | 7 | 14 |
| 2017 | 3 | 7 |
| 2018 | 11 | 12 |
| 2019 | 8 | 12 |
| 2020 | 8 | 9 |
| 2021 | 7 | 9 |
| 2022 | 7 | 5 |
| 2023 | 3 | 9 |
| 2024 | 10 | 6 |
| 2025 | 4 | 10 |
| 2026 | 5 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems and devices for remotely operated unmanned aerial vehicle report-suppressing launcher with portable RF transparent launch tube11 Aug 2026US 12,703,521 B2AeroVironment, Inc.
- Forged carbon fiber rifle barrel5 May 2026US 12,618,628 B2Grey Birch MFG
- System for cooling automatic firearms and cannons5 May 2026US 12,618,629 B2
- Devices, systems, and methods for treatment of tubulars14 Apr 2026US 12,601,081 B1Oceanit Laboratories, Inc.
- Systems and devices for remotely operated unmanned aerial vehicle report-suppressing launcher with portable RF transparent launch tube17 Feb 2026US 12,552,561 B2AeroVironment, Inc.
- Vacuum Cooled Carbon Fiber Wrapped Barrel17 Sep 2026US 2026/0276337 A1Grey Birch MFG
- Barrel as well as method for the manufacturing of barrel segments and method for the manufacturing of a barrel and a firing device comprising a barrel13 Aug 2026US 2026/0233305 A1Bae Systems Bofors AB
- Firearm Barrel for Lever Action Firearm11 Jun 2026US 2026/0160514 A1Blackstone Firearms, LLC
- Solving the Problems of the Prior Art Need to Oversize Weapon Bores and Loss of Accuracy Thereof21 May 2026US 2026/0139918 A1
- System for cooling automatic firearms and cannons30 Apr 2026US 2026/0118082 A1
Most cited
By later US patents
- Systems and devices for remotely operated unmanned aerial vehicle report-suppressing launcher with portable RF transparent launch tube184US 8,505,430 B2AeroVironment, Inc. · 2013
- Substrate coating techniques, including fabricating materials on a surface of a substrate81US 5,554,415 AQQC, Inc. · 1996
- Method of applying, sculpting, and texturing a coating on a substrate and for forming a heteroepitaxial coating on a surface of a substrate68US 5,648,127 AQQC, Inc. · 1997
- Gun barrel66US 5,856,631 ANitinol Technologies, Inc. · 1999
- Method for depositing coatings on the interior surfaces of tubular structures62US 7,052,736 B2Southwest Research Institute · 2006