B61G 3/00
Couplings comprising mating parts of similar shape or form which can be
Official title: Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements
B61G3/00 (Couplings comprising mating parts of similar shape or form which can be) appears on 201 US grants and 138 published applications in this corpus.
Search patents in B61G- Granted patents
- 201
- Published applications
- 138
- Assignees
- 79
- Inventors
- 267
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 4 | 0 |
| 1978 | 8 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 5 | 0 |
| 1984 | 10 | 0 |
| 1985 | 2 | 0 |
| 1986 | 5 | 0 |
| 1987 | 7 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 1 |
| 2004 | 2 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 4 |
| 2008 | 1 | 2 |
| 2009 | 3 | 7 |
| 2010 | 1 | 1 |
| 2011 | 2 | 6 |
| 2012 | 6 | 11 |
| 2013 | 8 | 12 |
| 2014 | 15 | 10 |
| 2015 | 7 | 7 |
| 2016 | 6 | 10 |
| 2017 | 7 | 8 |
| 2018 | 6 | 8 |
| 2019 | 9 | 7 |
| 2020 | 5 | 13 |
| 2021 | 6 | 1 |
| 2022 | 7 | 7 |
| 2023 | 7 | 7 |
| 2024 | 4 | 10 |
| 2025 | 5 | 2 |
| 2026 | 8 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B61G 3/04Couplings comprising mating parts of similar shape or form which can be158
- B61G 3/16Couplings comprising mating parts of similar shape or form which can be23
- B61G 3/22Couplings comprising mating parts of similar shape or form which can be11
- B61G 3/10Couplings comprising mating parts of similar shape or form which can be8
- B61G 3/28Couplings comprising mating parts of similar shape or form which can be7
- B61G 3/02Couplings comprising mating parts of similar shape or form which can be0
- B61G 3/30Couplings comprising mating parts of similar shape or form which can be0
Recent patents
- Coupling arrangement25 Aug 2026US 12,715,486 B2Bradken Resources Pty Limited
- Coupler, coupler system having a first coupler and a second coupler, and method for coupling14 Jul 2026US 12,679,429 B2Dellner Couplers AB
- Coupler and vehicle with coupler7 Jul 2026US 12,673,523 B2Crrc Qiqihar Rolling Stock Co., Ltd.
- Coupler knuckle internal pivot pin support2 Jun 2026US 12,643,581 B2New York Air Brake Corporation
- Extendable coupler2 Jun 2026US 12,643,582 B2
- Automatic Railcar Coupling System8 Oct 2026US 2026/0307688 A1Trackmobile LLC
- Rail vehicle coupler system26 Feb 2026US 2026/0054754 A1Transportation IP Holdings, LLC
- 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
- Coupler for a railway vehicle with a biasing device, and method for overhauling a coupler22 May 2025US 2025/0162623 A1Dellner Couplers AB
- Ride vehicle decoupling control system and method31 Oct 2024US 2024/0359108 A1Universal City Studios LLC
Most cited
By later US patents
- Low profile railway car112US 5,320,046 ATrinity Industries, Inc. · 1994
- Railway car coupler knuckle44US 5,582,307 AAMSTED Industries Incorporated · 1996
- Method and system for manufacturing a coupler knuckle44US 7,302,994 B2McConway & Torley Corporation · 2007
- Coupler knuckle41US 4,605,133 AAMSTED Industries Incorporated · 1986
- Slack reduced lock member for a type E raiway coupler41US 5,878,897 AMcConway & Torley Corporation · 1999