B61G 1/00
Couplings comprising interengaging parts of different shape or form and having links
Official title: Couplings comprising interengaging parts of different shape or form and having links, bars, pins, shackles, or hooks as coupling means
B61G1/00 (Couplings comprising interengaging parts of different shape or form and having links) appears on 85 US grants and 59 published applications in this corpus.
Search patents in B61G- Granted patents
- 85
- Published applications
- 59
- Assignees
- 53
- Inventors
- 159
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 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 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 4 |
| 2013 | 1 | 4 |
| 2014 | 1 | 2 |
| 2015 | 6 | 6 |
| 2016 | 1 | 4 |
| 2017 | 5 | 4 |
| 2018 | 0 | 7 |
| 2019 | 8 | 9 |
| 2020 | 6 | 5 |
| 2021 | 3 | 4 |
| 2022 | 8 | 3 |
| 2023 | 3 | 2 |
| 2024 | 3 | 4 |
| 2025 | 2 | 0 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B61G 1/28Couplings comprising interengaging parts of different shape or form and having links30
- B61G 1/36Couplings comprising interengaging parts of different shape or form and having links16
- B61G 1/32Couplings comprising interengaging parts of different shape or form and having links14
- B61G 1/02Couplings comprising interengaging parts of different shape or form and having links10
- B61G 1/40Couplings comprising interengaging parts of different shape or form and having links10
- B61G 1/22Couplings comprising interengaging parts of different shape or form and having links5
- B61G 1/10Couplings comprising interengaging parts of different shape or form and having links4
- B61G 1/18Couplings comprising interengaging parts of different shape or form and having links4
Recent patents
- System for automatic coupling and release of vehicles travelling on the rail network20 Jan 2026US 12,528,522 B2Co.El.Da. Software Srl
- Mechanical coupling in automated gladhand system13 Jan 2026US 12,522,261 B2Trackmobile LLC
- Tow hitch assembly for wheeled vehicles18 Nov 2025US 12,472,997 B2
- Railway vehicle coupler having robust knuckle22 Jul 2025US 12,365,370 B2Amsted Rail Company, Inc.
- Train coupler arrangement with axial expansion module23 Jul 2024US 12,043,296 B2Dellner Couplers AB
- Transport Facility7 May 2026US 2026/0125084 A1Daifuku Co., Ltd.
- Tow hitch assembly for wheeled vehicles16 May 2024US 2024/0157985 A1
- Coupler arrangement for rail vehicle28 Mar 2024US 2024/0101168 A1Dellner Couplers AB
- Catching device for a shunt coupling1 Feb 2024US 2024/0034369 A1Siemens Mobility GmbH
- System for automatic coupling and release of vehicles travelling on the rail network4 Jan 2024US 2024/0001974 A1Co.El.Da. Software Srl
Most cited
By later US patents
- Articulated railway coupling58US 4,258,628 AAMSTED Industries Incorporated · 1981
- Slackless railway coupler connection34US 4,456,133 AAMSTED Industries Incorporated · 1984
- Articulated railway car connection with guided slack adjusting wedges29US 4,593,829 AAMSTED Industries Incorporated · 1986
- Coupler for convertible rail-highway semi-trailer19US 4,585,133 AAMSTED Industries Incorporated · 1986
- Railway car drawbar connection with guided slack adjusting wedges17US 4,593,827 AAMSTED Industries Incorporated · 1986