F41A 31/02
Testing arrangements: for checking gun barrels
Official title: for checking gun barrels
F41A31/02 (Testing arrangements: for checking gun barrels) appears on 40 US grants and 24 published applications in this corpus.
Search patents in F41A- Granted patents
- 40
- Published applications
- 24
- Assignees
- 25
- Inventors
- 90
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 1 |
| 2007 | 2 | 2 |
| 2008 | 2 | 0 |
| 2009 | 1 | 1 |
| 2010 | 2 | 0 |
| 2011 | 2 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 3 |
| 2016 | 4 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 1 |
| 2019 | 1 | 2 |
| 2020 | 2 | 1 |
| 2021 | 1 | 2 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
| 2025 | 2 | 3 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Gel lauching apparatus with hydrochromic material and porous plastic25 Aug 2026US 12,716,682 B1Hasbro, Inc.
- Ballistic test barrels and related systems and methods24 Feb 2026US 12,560,417 B2Corvid Technologies LLC
- Camera and projectile detector systems and devices for ballistic parameter measurements of a projectile in a target volume30 Dec 2025US 12,510,649 B2SensorMetrix
- Barrel shot tracker, firearm with barrel shot tracker and methods of use thereof7 Oct 2025US 12,435,939 B1
- Electromagnetic pistol barrel test fixture2 Apr 2024US 11,946,712 B2Bill Wiseman & Co., Inc.
- Automated system for cleaning and inspection of straight hollow cylindrical objects1 Oct 2026US 2026/0298577 A1Griffyn Robotech Pvt. Ltd.
- Inspection and measurement system for straight hollow cylindrical objects23 Oct 2025US 2025/0327759 A1Bitmapper Integration Technologies
- Adjustable Headspace Gauge18 Sep 2025US 2025/0290721 A1
- Ballistic Test Barrels and Related Systems and Methods9 Jan 2025US 2025/0012551 A1Corvid Technologies LLC
- Camera and radar systems and devices for ballistic parameter measurements from a single side of a target volume29 Dec 2022US 2022/0413118 A1SensorMetrix
Most cited
By later US patents
- Flexible pipe cleaning device and system55US 5,768,741 A1998
- Flexible pipe cleaning device and system37US 5,987,683 A1999
- Bore sight apparatus11US 7,900,391 B1The United States of America as represented by the Secretary of the Navy · 2011
- Method and apparatus for inspecting the barrel of a firearm10US 5,241,458 A1993
- Barrel measuring device10US 7,347,002 B22008