B61G 1/28
Couplings comprising interengaging parts of different shape or form and having links
Official title: with vertical bolt or pin
B61G1/28 (Couplings comprising interengaging parts of different shape or form and having links) appears on 30 US grants and 14 published applications in this corpus.
Search patents in B61G- Granted patents
- 30
- Published applications
- 14
- Assignees
- 20
- Inventors
- 42
- Latest grant
- 18 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 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 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 2 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 4 |
| 2020 | 2 | 1 |
| 2021 | 1 | 2 |
| 2022 | 4 | 2 |
| 2023 | 1 | 0 |
| 2024 | 2 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Tow hitch assembly for wheeled vehicles18 Nov 2025US 12,472,997 B2
- Train coupler arrangement with axial expansion module23 Jul 2024US 12,043,296 B2Dellner Couplers AB
- Coupling support for a central buffer coupling of a rail vehicle4 Jun 2024US 11,999,389 B2Siemens Mobility GmbH
- Method of reconditioning a railcar coupler24 Oct 2023US 11,794,795 B2A. Stucki Company
- Method for loading equipment and/or personnel onto a wind turbine platform15 Nov 2022US 11,498,816 B2Seasight Davits ApS
- Tow hitch assembly for wheeled vehicles16 May 2024US 2024/0157985 A1
- Method of reconditioning a railcar coupler11 Aug 2022US 2022/0250664 A1A. Stucki Company
- Rail car mover attachment and related method of use20 Jan 2022US 2022/0017124 A1AIS Construction Equipment Corporation
- Coupling support for a central buffer coupling of a rail vehicle21 Oct 2021US 2021/0323587 A1Siemens Mobility GmbH
- Train coupler arrangement with axial expansion module19 Aug 2021US 2021/0253146 A1Dellner Couplers AB
Most cited
By later US patents
- Articulated railway coupling58US 4,258,628 AAMSTED Industries Incorporated · 1981
- 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
- Car coupling14US 4,073,507 ALester Construction Co. · 1978