F41A 9/53
Charged-condition indicators, i.e. indicating the presence of a cartridge in the cartridge
Official title: Charged-condition indicators, i.e. indicating the presence of a cartridge in the cartridge chamber
F41A9/53 (Charged-condition indicators, i.e. indicating the presence of a cartridge in the cartridge) appears on 58 US grants and 44 published applications in this corpus.
Search patents in F41A- Granted patents
- 58
- Published applications
- 44
- Assignees
- 31
- Inventors
- 103
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 1 |
| 2003 | 1 | 0 |
| 2004 | 1 | 1 |
| 2005 | 1 | 5 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 1 | 3 |
| 2009 | 2 | 1 |
| 2010 | 2 | 3 |
| 2011 | 3 | 1 |
| 2012 | 1 | 2 |
| 2013 | 2 | 1 |
| 2014 | 1 | 1 |
| 2015 | 2 | 1 |
| 2016 | 1 | 1 |
| 2017 | 1 | 4 |
| 2018 | 3 | 2 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 2 | 4 |
| 2022 | 2 | 3 |
| 2023 | 3 | 2 |
| 2024 | 1 | 4 |
| 2025 | 5 | 2 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Slide assembly for a firearm, as well as an indicator for use in the slide assembly, and a firearm comprising the slide assembly, and a method for assembling the slide assembly12 May 2026US 12,624,912 B1Glock Technology GmbH
- Firearm warning assembly17 Feb 2026US 12,553,677 B2
- Loaded-chamber indicator firearm trigger device8 Jul 2025US 12,352,519 B2
- Self-illuminated firearm chamber8 Apr 2025US 12,270,619 B2
- Modular delinker for machine gun11 Feb 2025US 12,222,179 B2CHD Holdings, LLC
- Firearm warning assembly11 Sep 2025US 2025/0283681 A1Ralstec Corporation
- Loaded-Chamber Indicator Firearm Trigger Device16 Jan 2025US 2025/0020423 A1
- Self-illuminated firearm chamber19 Dec 2024US 2024/0418465 A1
- Modular delinker for machine gun18 Jul 2024US 2024/0240889 A1CHD Holdings, LLC
- Delinker loaded round indicator18 Jul 2024US 2024/0240890 A1CHD Holdings, LLC
Most cited
By later US patents
- Electronic firearm and process for controlling an electronic firearm87US 5,755,056 ARemington Arms Company, Inc. · 1998
- Electronic firing system for target pistol81US 4,793,085 AColt Industries Inc. · 1988
- Bolt action for repeating rifle78US 3,979,849 A1976
- Firearm system for data acquisition and control54US 8,464,451 B22013
- Security apparatus for authorizing use of a non-impact firearm53US 6,360,468 B1Smith & Wesson Corp. · 2002