B61G 5/02
Couplings for special purposes not otherwise provided for: for coupling articulated trains
Official title: for coupling articulated trains, locomotives and tenders or the bogies of a vehicle; Coupling by means of a single coupling bar; Couplings preventing or limiting relative lateral movement of vehicles
B61G5/02 (Couplings for special purposes not otherwise provided for: for coupling articulated trains) appears on 125 US grants and 56 published applications in this corpus.
Search patents in B61G- Granted patents
- 125
- Published applications
- 56
- Assignees
- 74
- Inventors
- 179
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 7 | 0 |
| 1988 | 6 | 0 |
| 1989 | 2 | 0 |
| 1990 | 7 | 0 |
| 1991 | 4 | 0 |
| 1992 | 9 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 5 | 2 |
| 2002 | 2 | 1 |
| 2003 | 1 | 0 |
| 2004 | 2 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 4 |
| 2007 | 1 | 3 |
| 2008 | 1 | 1 |
| 2009 | 1 | 5 |
| 2010 | 4 | 3 |
| 2011 | 5 | 5 |
| 2012 | 1 | 3 |
| 2013 | 2 | 0 |
| 2014 | 3 | 3 |
| 2015 | 2 | 1 |
| 2016 | 1 | 1 |
| 2017 | 2 | 1 |
| 2018 | 1 | 5 |
| 2019 | 0 | 4 |
| 2020 | 4 | 2 |
| 2021 | 3 | 1 |
| 2022 | 3 | 2 |
| 2023 | 3 | 5 |
| 2024 | 1 | 2 |
| 2025 | 1 | 1 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Extendable coupler2 Jun 2026US 12,643,582 B2
- Chain of semi-trailer vehicles and associated articulated trainset10 Mar 2026US 12,570,335 B2ALSTOM Holdings
- Mechanical coupling in automated gladhand system13 Jan 2026US 12,522,261 B2Trackmobile LLC
- Articulation device for an articulated vehicle, corresponding vehicle and adjustment method7 Oct 2025US 12,434,745 B2ALSTOM Holdings
- Coupling support for a central buffer coupling of a rail vehicle4 Jun 2024US 11,999,389 B2Siemens Mobility GmbH
- Systems and methods for recovery of an impaired vehicle on a suspended track18 Sep 2025US 2025/0293066 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Rail Vehicle Having a Carriage Coupling Device26 Dec 2024US 2024/0425092 A1Siemens Mobility Austria GmbH
- Anti-side-rolling damping vehicle-end device, and rail vehicle and train2 May 2024US 2024/0140500 A1Crrc Qingdao Sifang Co., Ltd.
- Extendable Coupler21 Dec 2023US 2023/0406371 A1
- Transport vehicle and transport apparatus21 Dec 2023US 2023/0406372 A1Semes Co., Ltd.
Most cited
By later US patents
- Rail semi-trailer and releasable coupler77US 4,741,273 A1988
- Articulated lightweight piggyback railcar65US 4,751,882 ACanadian National Railway Company · 1988
- Articulated railway coupling58US 4,258,628 AAMSTED Industries Incorporated · 1981
- Railroad car sill-articulating device member connection55US 4,336,758 AAMSTED Industries Incorporated · 1982
- Articulated railway car44US 4,191,107 APullman Incorporated · 1980