B61G 9/20
Details
Official title: Details; Accessories
B61G9/20 (Details) appears on 177 US grants and 107 published applications in this corpus.
Search patents in B61G- Granted patents
- 177
- Published applications
- 107
- Assignees
- 75
- Inventors
- 253
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 6 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 5 | 0 |
| 2000 | 7 | 0 |
| 2001 | 2 | 0 |
| 2002 | 6 | 2 |
| 2003 | 0 | 2 |
| 2004 | 4 | 2 |
| 2005 | 1 | 4 |
| 2006 | 4 | 6 |
| 2007 | 4 | 4 |
| 2008 | 2 | 11 |
| 2009 | 4 | 5 |
| 2010 | 4 | 3 |
| 2011 | 5 | 2 |
| 2012 | 5 | 4 |
| 2013 | 4 | 3 |
| 2014 | 4 | 3 |
| 2015 | 2 | 1 |
| 2016 | 2 | 3 |
| 2017 | 2 | 4 |
| 2018 | 3 | 7 |
| 2019 | 10 | 12 |
| 2020 | 5 | 6 |
| 2021 | 8 | 5 |
| 2022 | 6 | 6 |
| 2023 | 4 | 3 |
| 2024 | 1 | 4 |
| 2025 | 5 | 3 |
| 2026 | 6 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Coupling arrangement25 Aug 2026US 12,715,486 B2Bradken Resources Pty Limited
- Coupler buffer device mounting structure with small-fastening-torque pushing under compact space21 Jul 2026US 12,686,419 B2CRRC Nanjing Puzhen Co., Ltd.
- End enclosure for light rail vehicles26 May 2026US 12,637,117 B2Applied Research Associates, Inc.
- Drawbar for vehicle coupler26 May 2026US 12,637,118 B2Dellner Couplers AB
- Yoke assembly for a coupler system24 Mar 2026US 12,583,490 B2Transportation IP Holdings, LLC
- Railcar drawbar assembly17 Sep 2026US 2026/0274310 A1Miner Enterprises, Inc.
- Spacer arrangement for a mounting compartment of a rail vehicle and method for installing a draft gear and a spacer arrangement in a mounting compartment2 Apr 2026US 2026/0091811 A1Dellner Couplers AB
- 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
- Coupler for a railway vehicle with a biasing device, and method for overhauling a coupler22 May 2025US 2025/0162623 A1Dellner Couplers AB
- A shear-off device for train couplers27 Mar 2025US 2025/0100594 A1Rxd - Research Exchange Development AB
Most cited
By later US patents
- Railcar draft gear housing48US 6,796,448 B1Miner Enterprises, Inc. · 2004
- Railcar draft gear assembly and system37US 6,446,820 B1AMSTED Industries Incorporated · 2002
- Draw bar force sensing locomotive control system31US 4,838,173 ARockwell International Corporation · 1989
- Railcar draft gear assembly and system28US 6,681,943 B2AMSTED Industries Incorporated · 2004
- Self lubricating yoke wear plate arrangement26US 4,055,254 AHolland Company · 1977