F41A 21/20
Barrels or gun tubes characterised by the material
Official title: Barrels or gun tubes characterised by the material (F41A21/02 takes precedence)
F41A21/20 (Barrels or gun tubes characterised by the material) appears on 59 US grants and 60 published applications in this corpus.
Search patents in F41A- Granted patents
- 59
- Published applications
- 60
- Assignees
- 41
- Inventors
- 113
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 4 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 2 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 3 |
| 2010 | 3 | 4 |
| 2011 | 2 | 3 |
| 2012 | 2 | 4 |
| 2013 | 3 | 4 |
| 2014 | 6 | 1 |
| 2015 | 1 | 5 |
| 2016 | 5 | 5 |
| 2017 | 3 | 5 |
| 2018 | 4 | 1 |
| 2019 | 3 | 5 |
| 2020 | 4 | 4 |
| 2021 | 3 | 2 |
| 2022 | 2 | 3 |
| 2023 | 1 | 0 |
| 2024 | 2 | 1 |
| 2025 | 1 | 2 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Forged carbon fiber rifle barrel5 May 2026US 12,618,628 B2Grey Birch MFG
- Enhanced metal-metal-matrix composite weapon barrels8 Apr 2025US 12,270,618 B2Consulting Group of Jocassee, Inc.
- Enhanced metal-metal-matrix composite weapon barrels13 Aug 2024US 12,061,059 B2Consulting Group of Jocassee, Inc.
- Projectile accelerator with heatable barrel5 Mar 2024US 11,920,888 B2Science Applications International Corporation
- Machine gun infantry “KT-7.62”3 Oct 2023US 11,774,204 B2
- 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
- Rifle19 Mar 2026US 2026/0078973 A1Fabbrica D'Armi Pietro Beretta S.p.A.
- Forged Carbon Fiber Rifle Barrel18 Sep 2025US 2025/0290719 A1Grey Birch MFG
- Advanced lightweight barrel design11 Sep 2025US 2025/0283684 A1The United States of America as represented by the Secretary of the Navy
- Enhanced metal-metal-matrix composite weapon barrels24 Oct 2024US 2024/0353194 A1Consulting Group of Jocassee, Inc.
Most cited
By later US patents
- Gun barrel66US 5,856,631 ANitinol Technologies, Inc. · 1999
- Gun barrel for use at high temperature53US 4,669,212 AGeneral Electric Company · 1987
- Gun barrel23US 6,615,702 B1Nitinol Technologies, Inc. · 2003
- Gun barrel and method of forming21US 7,721,478 B2Materials & Electrochemical Research Corp. · 2010
- Apparatus and method for applying coatings onto the interior surfaces of components and related structures produced therefrom19US 8,110,043 B2University of Virginia Patent Foundation · 2012