B61F 5/22
Guiding of the vehicle underframes with respect to the bogies
B61F5/22 (Guiding of the vehicle underframes with respect to the bogies) appears on 282 US grants and 188 published applications in this corpus.
Search patents in B61F- Granted patents
- 282
- Published applications
- 188
- Assignees
- 146
- Inventors
- 548
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 6 | 0 |
| 1978 | 7 | 0 |
| 1979 | 7 | 0 |
| 1980 | 3 | 0 |
| 1981 | 5 | 0 |
| 1982 | 8 | 0 |
| 1983 | 5 | 0 |
| 1984 | 8 | 0 |
| 1985 | 4 | 0 |
| 1986 | 4 | 0 |
| 1987 | 5 | 0 |
| 1988 | 5 | 0 |
| 1989 | 5 | 0 |
| 1990 | 5 | 0 |
| 1991 | 2 | 0 |
| 1992 | 6 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 6 | 0 |
| 1997 | 4 | 0 |
| 1998 | 6 | 0 |
| 1999 | 5 | 0 |
| 2000 | 5 | 0 |
| 2001 | 6 | 0 |
| 2002 | 3 | 3 |
| 2003 | 2 | 3 |
| 2004 | 5 | 4 |
| 2005 | 1 | 2 |
| 2006 | 3 | 2 |
| 2007 | 0 | 2 |
| 2008 | 2 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 6 |
| 2011 | 3 | 8 |
| 2012 | 1 | 8 |
| 2013 | 6 | 8 |
| 2014 | 7 | 15 |
| 2015 | 10 | 13 |
| 2016 | 14 | 11 |
| 2017 | 9 | 13 |
| 2018 | 13 | 11 |
| 2019 | 8 | 20 |
| 2020 | 9 | 15 |
| 2021 | 14 | 7 |
| 2022 | 10 | 17 |
| 2023 | 10 | 4 |
| 2024 | 7 | 6 |
| 2025 | 8 | 6 |
| 2026 | 4 | 2 |
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.
- 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 and method for guidance control on a wheeled bogie6 Jan 2026US 12,515,717 B2Dp World Logistics US Holdings, Inc.
- Tilting system and tilting control method for railway vehicle and railway vehicle25 Nov 2025US 12,479,480 B2Crrc Qingdao Sifang Co., Ltd.
- System and Method to Reduce Particulate Generation in an Independent Cart System21 May 2026US 2026/0138652 A1Rockwell Automation Technologies, Inc.
- Rail vehicle having increased side-wind stability22 Jan 2026US 2026/0021834 A1Siemens Mobility GmbH
- Active adjustment method, device, control system and control method of connecting rod length2 Oct 2025US 2025/0304123 A1Zhuzhou Times New Material Technology Co., Ltd.
- Computer-implemented method and control device for determining a real time steering angle11 Sep 2025US 2025/0282397 A1Traila AG
- Electric rail vehicle28 Aug 2025US 2025/0269882 A1Parallel Systems, Inc.
Most cited
By later US patents
- System and method for the detection of vehicle rollover conditions256US 5,825,284 ARollover Operations, LLC · 1998
- Flexible railway car truck68US 4,938,152 ARailway Engineering Associates, Inc. · 1990
- Self-steering railway truck64US 4,151,801 ASouth African Inventions Development Corporation · 1979
- Damping railway vehicle suspension63US 4,067,261 ASouth African Inventions Development Corporation · 1978
- Primary suspension for railroad car truck59US 4,552,074 AAMSTED Industries Incorporated · 1985