B61F 5/02
Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and
Official title: Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
B61F5/02 (Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and) appears on 863 US grants and 531 published applications in this corpus.
Search patents in B61F- Granted patents
- 863
- Published applications
- 531
- Assignees
- 325
- Inventors
- 1,280
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 21 | 0 |
| 1977 | 14 | 0 |
| 1978 | 27 | 0 |
| 1979 | 18 | 0 |
| 1980 | 23 | 0 |
| 1981 | 25 | 0 |
| 1982 | 30 | 0 |
| 1983 | 13 | 0 |
| 1984 | 15 | 0 |
| 1985 | 10 | 0 |
| 1986 | 14 | 0 |
| 1987 | 17 | 0 |
| 1988 | 16 | 0 |
| 1989 | 15 | 0 |
| 1990 | 14 | 0 |
| 1991 | 18 | 0 |
| 1992 | 14 | 0 |
| 1993 | 11 | 0 |
| 1994 | 8 | 0 |
| 1995 | 9 | 0 |
| 1996 | 15 | 0 |
| 1997 | 9 | 0 |
| 1998 | 17 | 0 |
| 1999 | 13 | 0 |
| 2000 | 14 | 0 |
| 2001 | 22 | 3 |
| 2002 | 15 | 12 |
| 2003 | 8 | 10 |
| 2004 | 14 | 16 |
| 2005 | 10 | 17 |
| 2006 | 12 | 10 |
| 2007 | 7 | 11 |
| 2008 | 8 | 15 |
| 2009 | 11 | 10 |
| 2010 | 9 | 17 |
| 2011 | 8 | 19 |
| 2012 | 14 | 19 |
| 2013 | 15 | 26 |
| 2014 | 26 | 34 |
| 2015 | 19 | 30 |
| 2016 | 32 | 34 |
| 2017 | 28 | 33 |
| 2018 | 29 | 40 |
| 2019 | 30 | 52 |
| 2020 | 32 | 32 |
| 2021 | 35 | 26 |
| 2022 | 25 | 23 |
| 2023 | 20 | 13 |
| 2024 | 14 | 16 |
| 2025 | 14 | 7 |
| 2026 | 6 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for improving curvilinear running speed of railway vehicle and smart tilting system11 Aug 2026US 12,703,406 B2Zhuzhou Times New Material Technology Co., Ltd.
- Railroad car truck damper wedge fittings4 Aug 2026US 12,698,016 B2National Steel Car Limited
- Rail vehicle2 Jun 2026US 12,643,579 B2Hitachi, Ltd.
- Bogie for a railway vehicle with roll stabiliser26 May 2026US 12,637,116 B2Cg Rail—Chinesisch-Deutsches Forschungs—Und Entwicklungszentrum FüR Bahn—Und Verkehrstechnik Dresden GmbH
- System for recovery of compressed air released by air suspensions of at least one railway vehicle or train31 Mar 2026US 12,589,780 B2FAIVELEY TRANSPORT ITALIA S. p. A.
- Narrow vehicle body high-speed maglev train and suspension frame therefor6 Aug 2026US 2026/0225626 A1Crrc Qingdao Sifang Co., Ltd.
- System and Method to Reduce Particulate Generation in an Independent Cart System21 May 2026US 2026/0138652 A1Rockwell Automation Technologies, Inc.
- Control of running-gear height by means of passenger boarding sensor2 Apr 2026US 2026/0091810 A1Siemens Mobility GmbH
- Bogie assemblies19 Mar 2026US 2026/0077790 A1Amsted Rail Company, Inc.
- Rail vehicle having increased side-wind stability22 Jan 2026US 2026/0021834 A1Siemens Mobility GmbH
Most cited
By later US patents
- System and method for the detection of vehicle rollover conditions256US 5,825,284 ARollover Operations, LLC · 1998
- Bogie vehicle with electrohydraulic brakes and hydropneumatic suspension103US 5,074,624 ACompagnie Industrielle de Materiel de Transport · 1991
- Railway truck damping assembly70US 4,915,031 AHansen Inc. · 1990
- Flexible railway car truck68US 4,938,152 ARailway Engineering Associates, Inc. · 1990
- Radial axle railway truck64US 4,134,343 AGeneral Steel Industries, Inc. · 1979