B61D 15/06
Buffer cars
Official title: Buffer cars; Arrangements or construction of railway vehicles for protecting them in case of collisions (buffers B61G11/00)
B61D15/06 (Buffer cars) appears on 115 US grants and 119 published applications in this corpus.
Search patents in B61D- Granted patents
- 115
- Published applications
- 119
- Assignees
- 56
- Inventors
- 263
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 2 |
| 2002 | 6 | 5 |
| 2003 | 2 | 6 |
| 2004 | 6 | 6 |
| 2005 | 5 | 2 |
| 2006 | 0 | 1 |
| 2007 | 0 | 7 |
| 2008 | 1 | 11 |
| 2009 | 5 | 4 |
| 2010 | 7 | 5 |
| 2011 | 2 | 3 |
| 2012 | 5 | 4 |
| 2013 | 1 | 6 |
| 2014 | 6 | 10 |
| 2015 | 8 | 8 |
| 2016 | 9 | 6 |
| 2017 | 5 | 5 |
| 2018 | 6 | 5 |
| 2019 | 3 | 6 |
| 2020 | 4 | 7 |
| 2021 | 7 | 2 |
| 2022 | 5 | 3 |
| 2023 | 0 | 0 |
| 2024 | 2 | 4 |
| 2025 | 2 | 0 |
| 2026 | 4 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- End cab switcher locomotive4 Aug 2026US 12,698,012 B2Siemens Mobility GmbH
- Railcar bodyshell4 Aug 2026US 12,698,014 B2Kawasaki Railcar Manufacturing Co., Ltd.
- End enclosure for light rail vehicles26 May 2026US 12,637,117 B2Applied Research Associates, Inc.
- Railway vehicle with collision-protecting crushable areas3 Mar 2026US 12,565,245 B2ALSTOM Holdings
- Railroad car having multiple penetration resistant and protective structures6 May 2025US 12,291,246 B2Cngmotive, Inc.
- Railroad car having multiple penetration resistant and protective structures14 May 2026US 2026/0131831 A1Hgmotive, Inc.
- End cab switcher locomotive26 Sep 2024US 2024/0317279 A1Siemens Mobility GmbH
- End enclosure for light rail vehicles4 Apr 2024US 2024/0109563 A1Applied Research Associates, Inc.
- Railway vehicle with collision-protecting crushable areas29 Feb 2024US 2024/0067236 A1ALSTOM Holdings
- Train having protection device with self-adaptive crashworthiness29 Feb 2024US 2024/0067237 A1Central South University
Most cited
By later US patents
- Body structure46US 6,799,794 B2Mitsubishi Heavy Industries, Ltd. · 2004
- Impact-absorber devices, impact-absorption method, and framework and vehicle including such impact-aborber devices45US 5,660,116 AGEC Alsthom Transport SA · 1997
- Impact-absorber devices, impact-absorption method, and framework and vehicle including such impact-absorber devices37US 5,579,699 AGEC Alsthom Transport SA · 1996
- Impact-absorber devices, impact-absorption method, and framework and vehicle including such impact-absorber devices27US 5,715,757 AGEC Alsthom Transport SA · 1998
- Rail vehicle having a driver's cab provided with an energy-absorbing structure adapted to cope with a collision above the frame of the vehicle20US 6,561,105 B2Alstom · 2003