B61G 9/04
Draw-gear combined with buffing appliances
Official title: Draw-gear combined with buffing appliances (continuous B61G9/12)
B61G9/04 (Draw-gear combined with buffing appliances) appears on 149 US grants and 113 published applications in this corpus.
Search patents in B61G- Granted patents
- 149
- Published applications
- 113
- Assignees
- 69
- Inventors
- 221
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 4 | 0 |
| 2002 | 5 | 2 |
| 2003 | 2 | 1 |
| 2004 | 2 | 1 |
| 2005 | 1 | 8 |
| 2006 | 3 | 4 |
| 2007 | 6 | 3 |
| 2008 | 2 | 9 |
| 2009 | 3 | 3 |
| 2010 | 1 | 1 |
| 2011 | 3 | 2 |
| 2012 | 5 | 5 |
| 2013 | 4 | 5 |
| 2014 | 6 | 1 |
| 2015 | 2 | 4 |
| 2016 | 2 | 3 |
| 2017 | 5 | 10 |
| 2018 | 3 | 6 |
| 2019 | 9 | 9 |
| 2020 | 5 | 9 |
| 2021 | 7 | 7 |
| 2022 | 8 | 7 |
| 2023 | 4 | 6 |
| 2024 | 3 | 2 |
| 2025 | 4 | 3 |
| 2026 | 5 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Coupler buffer device mounting structure with small-fastening-torque pushing under compact space21 Jul 2026US 12,686,419 B2CRRC Nanjing Puzhen Co., Ltd.
- Extended travel railcar damping system21 Jul 2026US 12,686,420 B2A. Stucki Company
- Coupler for a rail vehicle and rail vehicle with a coupler9 Jun 2026US 12,649,501 B2Dellner Couplers AB
- Yoke assembly for a coupler system24 Mar 2026US 12,583,490 B2Transportation IP Holdings, LLC
- Yoke-mounted coupler support3 Feb 2026US 12,539,897 B2Strato Technology Solutions, LLC
- Railcar drawbar assembly17 Sep 2026US 2026/0274310 A1Miner Enterprises, Inc.
- Rail vehicle coupler system26 Feb 2026US 2026/0054754 A1Transportation IP Holdings, LLC
- End piece for a coupling rod, draft gear for a coupling rod, coupler for a multi-car vehicle and method for building a draft gear or coupler6 Nov 2025US 2025/0340228 A1
- A shear-off device for train couplers27 Mar 2025US 2025/0100594 A1Rxd - Research Exchange Development AB
- Damper arrangement comprising a damper and a plurality of elastomeric elements6 Feb 2025US 2025/0042451 A1Dellner Couplers AB
Most cited
By later US patents
- Elastomer spring/hydraulic shock absorber cushioning device38US 5,845,796 AMiner Enterprises, Inc. · 1998
- Railcar draft gear assembly and system37US 6,446,820 B1AMSTED Industries Incorporated · 2002
- Energy absorbing assembly32US 4,346,795 AHarvey Hubbell Incorporated · 1982
- Elastomeric spring unit31US 5,351,844 AMiner Enterprises, Inc. · 1994
- Railcar draft gear assembly and system28US 6,681,943 B2AMSTED Industries Incorporated · 2004