B61G 1/36
Couplings comprising interengaging parts of different shape or form and having links
Official title: with shackles and hooks, e.g. specially adapted for mine cars
B61G1/36 (Couplings comprising interengaging parts of different shape or form and having links) appears on 16 US grants and 5 published applications in this corpus.
Search patents in B61G- Granted patents
- 16
- Published applications
- 5
- Assignees
- 11
- Inventors
- 27
- Latest grant
- 24 Jan 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 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 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 2 |
| 2021 | 0 | 2 |
| 2022 | 2 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Railway vehicle, coupler, and coupler body thereof24 Jan 2023US 11,560,161 B2Crrc Qiqihar Rolling Stock Co., Ltd.
- Railroad freight car coupling system18 Oct 2022US 11,472,447 B2Miner Enterprises, Inc.
- Towing hook21 Jun 2022US 11,364,752 B2Sandvik Mining and Construction Oy
- Rotary coupler for a railway car30 Jul 2013US 8,496,128 B2McConway & Torley Corporation
- Railway coupler arrangement6 Nov 1984US 4,480,758 AMcConway & Torley Corporation
- Railroad freight car coupling system28 Oct 2021US 2021/0331721 A1Miner Enterprises, Inc.
- Towing hook20 May 2021US 2021/0146737 A1Sandvik Mining and Construction Oy
- Railway vehicle, coupler, and coupler body thereof31 Dec 2020US 2020/0406940 A1Crrc Qiqihar Rolling Stock Co., Ltd.
- Lifting apparatus24 Dec 2020US 2020/0398874 A1Fortescue Metals Group Ltd
- Rotary Coupler for a Railway Car26 Apr 2012US 2012/0097631 A1McConway & Torley Corporation
Most cited
By later US patents
- Roll-over lock protection for railroad car coupler12US 4,172,530 AAMSTED Industries Incorporated · 1979
- Rotary coupler11US 4,093,079 ADresser Industries, Inc. · 1978
- Pin type solid butt rotary coupler11US 4,230,228 AAMSTED Industries Incorporated · 1980
- Railway coupler arrangement11US 4,480,758 AMcConway & Torley Corporation · 1984
- Railway car rotary coupler10US 4,267,935 ADresser Industries, Inc. · 1981