F41A 3/82
Coil spring buffers
Official title: Coil spring buffers (F41A3/80 takes precedence)
F41A3/82 (Coil spring buffers) appears on 304 US grants and 253 published applications in this corpus.
Search patents in F41A- Granted patents
- 304
- Published applications
- 253
- Assignees
- 119
- Inventors
- 356
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 3 |
| 2005 | 0 | 2 |
| 2006 | 1 | 6 |
| 2007 | 1 | 1 |
| 2008 | 5 | 4 |
| 2009 | 3 | 2 |
| 2010 | 2 | 6 |
| 2011 | 2 | 4 |
| 2012 | 7 | 8 |
| 2013 | 9 | 8 |
| 2014 | 5 | 13 |
| 2015 | 13 | 6 |
| 2016 | 8 | 10 |
| 2017 | 8 | 18 |
| 2018 | 24 | 24 |
| 2019 | 25 | 20 |
| 2020 | 24 | 21 |
| 2021 | 25 | 20 |
| 2022 | 14 | 14 |
| 2023 | 18 | 18 |
| 2024 | 20 | 19 |
| 2025 | 19 | 16 |
| 2026 | 12 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Recoil spring abutment for a slide of a modular handgun1 Sep 2026US 12,723,826 B2Glock Technology GmbH
- Recoil assembly for a machine gun26 May 2026US 12,638,261 B2Sig Sauer, Inc.
- Pistol compensator components, systems, and methods19 May 2026US 12,631,411 B2
- Firearm buffer systems12 May 2026US 12,624,909 B2
- Compact stock for AR-style firearms5 May 2026US 12,618,625 B2Eight Holdings LLC
- Recoil spring assembly1 Oct 2026US 2026/0298565 A1HS Product D.O.O.
- Firearm recoil buffer operable in underwater environment10 Sep 2026US 2026/0266568 A1DSG Tec USA, Inc.
- Ammunition convertible firearm16 Jul 2026US 2026/0202154 A1Ares Defense Systems, Inc.
- One-piece guide rod11 Jun 2026US 2026/0160509 A1Wilson's Gun Shop, Inc
- Integrated multi-port compensator and barrel thru slide11 Jun 2026US 2026/0160515 A1Wilson's Gun Shop, Inc
Most cited
By later US patents
- Gas actuated pistol94US 4,563,937 AMagnum Research, Inc. · 1986
- Mechanical buffer for shouldered weapon86US 7,478,495 B1The United States of America as represented by the Secretary of the Army · 2009
- Automatic or semiautomatic rifle with folding stock86US 7,966,761 B1Colt Defense LLC · 2011
- Firearm buffer system77US 6,829,974 B12004
- Buffer for firearm76US 5,909,002 A1999