B61G 3/06
Knuckle-locking devices
B61G3/06 (Knuckle-locking devices) appears on 60 US grants and 36 published applications in this corpus.
Search patents in B61G- Granted patents
- 60
- Published applications
- 36
- Assignees
- 36
- Inventors
- 105
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 2 |
| 2008 | 1 | 0 |
| 2009 | 2 | 3 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 1 | 1 |
| 2013 | 2 | 2 |
| 2014 | 1 | 0 |
| 2015 | 1 | 2 |
| 2016 | 0 | 2 |
| 2017 | 4 | 3 |
| 2018 | 1 | 1 |
| 2019 | 2 | 3 |
| 2020 | 2 | 5 |
| 2021 | 1 | 1 |
| 2022 | 3 | 1 |
| 2023 | 2 | 1 |
| 2024 | 1 | 4 |
| 2025 | 0 | 1 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Coupling arrangement25 Aug 2026US 12,715,486 B2Bradken Resources Pty Limited
- Coupler and vehicle with coupler7 Jul 2026US 12,673,523 B2Crrc Qiqihar Rolling Stock Co., Ltd.
- Railcar coupler key retainer apparatus12 May 2026US 12,623,697 B2Miner Enterprises, Inc.
- Vehicle coupler, coupler tongue and coupler body27 Feb 2024US 11,912,316 B2Crrc Qiqihar Rolling Stock Co., Ltd.
- Railcar end unit11 Jul 2023US 11,697,441 B2O-Ring Sales & Service, Inc.
- Coupler head for a coupler assembly of a multi-car rail vehicle, coupler assembly, and method of retrofitting a coupler head with a safety device19 Jun 2025US 2025/0196899 A1
- Ride vehicle decoupling control system and method31 Oct 2024US 2024/0359108 A1Universal City Studios LLC
- Coupling arrangement17 Oct 2024US 2024/0343276 A1Bradken Resources Pty Limited
- Coupler and Vehicle with Coupler11 Jul 2024US 2024/0227471 A9Crrc Qiqihar Rolling Stock Co., Ltd.
- Coupler and Vehicle with Coupler25 Apr 2024US 2024/0131881 A1Crrc Qiqihar Rolling Stock Co., Ltd.
Most cited
By later US patents
- Slack reduced lock member for a type E raiway coupler41US 5,878,897 AMcConway & Torley Corporation · 1999
- Tail portion for railroad car coupler knuckle36US 4,206,849 AAMSTED Industries Incorporated · 1980
- Railway car coupler knuckle having improved bearing surface35US 7,337,826 B2McConway & Torley Corporation · 2008
- Knuckle pin retainer for railway vehicle coupler30US 4,976,363 AAMSTED Industries Incorporated · 1990
- Coupler knuckle contour27US 4,024,958 AAMSTED Industries Incorporated · 1977