F41A 3/80
Adjustable spring buffers
F41A3/80 (Adjustable spring buffers) appears on 26 US grants and 22 published applications in this corpus.
Search patents in F41A- Granted patents
- 26
- Published applications
- 22
- Assignees
- 10
- Inventors
- 35
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 3 |
| 2015 | 2 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 2 | 1 |
| 2019 | 2 | 2 |
| 2020 | 1 | 1 |
| 2021 | 3 | 1 |
| 2022 | 1 | 1 |
| 2023 | 2 | 1 |
| 2024 | 0 | 4 |
| 2025 | 3 | 3 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Bolt assembly for firearm28 Jul 2026US 12,693,083 B2Sturm, Ruger & Company, Inc.
- Action system for firearm24 Feb 2026US 12,560,392 B2McCloy IP, LLC
- Bolt assembly for firearm3 Jun 2025US 12,320,608 B2Sturm, Ruger & Company, Inc.
- Recoil reduction system25 Mar 2025US 12,259,207 B2
- Apparatus for reducing the manual cycling force of a firearm14 Jan 2025US 12,196,518 B2
- Bolt assembly for firearm11 Sep 2025US 2025/0283679 A1Sturm, Ruger & Company, Inc.
- Action system for firearm10 Apr 2025US 2025/0116469 A1McCloy IP, LLC
- Tunable recoil assembly3 Apr 2025US 2025/0109919 A1Axts Inc
- Bolt braking system in firearms1 Aug 2024US 2024/0255245 A1
- Apparatus for reducing the manual cycling force of a firearm9 May 2024US 2024/0151483 A1
Most cited
By later US patents