B61F 3/00
Types of bogies
Official title: Types of bogies (B61F5/00 takes precedence)
B61F3/00 (Types of bogies) appears on 459 US grants and 299 published applications in this corpus.
Search patents in B61F- Granted patents
- 459
- Published applications
- 299
- Assignees
- 205
- Inventors
- 712
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 13 | 0 |
| 1978 | 12 | 0 |
| 1979 | 8 | 0 |
| 1980 | 7 | 0 |
| 1981 | 8 | 0 |
| 1982 | 10 | 0 |
| 1983 | 6 | 0 |
| 1984 | 16 | 0 |
| 1985 | 6 | 0 |
| 1986 | 4 | 0 |
| 1987 | 12 | 0 |
| 1988 | 11 | 0 |
| 1989 | 8 | 0 |
| 1990 | 8 | 0 |
| 1991 | 8 | 0 |
| 1992 | 5 | 0 |
| 1993 | 6 | 0 |
| 1994 | 5 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 6 | 0 |
| 1998 | 3 | 0 |
| 1999 | 6 | 0 |
| 2000 | 5 | 0 |
| 2001 | 5 | 1 |
| 2002 | 11 | 7 |
| 2003 | 8 | 7 |
| 2004 | 4 | 4 |
| 2005 | 3 | 3 |
| 2006 | 4 | 5 |
| 2007 | 3 | 5 |
| 2008 | 1 | 2 |
| 2009 | 4 | 9 |
| 2010 | 1 | 19 |
| 2011 | 5 | 10 |
| 2012 | 8 | 12 |
| 2013 | 16 | 9 |
| 2014 | 17 | 17 |
| 2015 | 8 | 11 |
| 2016 | 16 | 19 |
| 2017 | 8 | 22 |
| 2018 | 18 | 20 |
| 2019 | 18 | 25 |
| 2020 | 15 | 25 |
| 2021 | 23 | 20 |
| 2022 | 27 | 18 |
| 2023 | 20 | 10 |
| 2024 | 11 | 8 |
| 2025 | 6 | 7 |
| 2026 | 9 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Maglev bogie with a centering function and guiding method thereof4 Aug 2026US 12,698,017 B2Jiangxi University of Science and Technology
- Wheel arrangement for a rail vehicle2 Jun 2026US 12,643,580 B2Bombardier Transportation GmbH
- Bogie and vehicle28 Apr 2026US 12,612,085 B2Mitsubishi Heavy Industries, Ltd.
- Wheel arrangement for a rail vehicle14 Apr 2026US 12,600,388 B2Bombardier Transportation GmbH
- Portal axle for a rail vehicle and method for manufacturing a portal axle of this type24 Mar 2026US 12,583,256 B2Bochumer Verein Verkehrstechnik GmbH
- Multi-unit railroad car and railroad car trucks therefor11 Jun 2026US 2026/0159140 A1National Steel Car Limited
- Rail Vehicle and Running Gear for the Rail Vehicle28 May 2026US 2026/0145713 A1Siemens Mobility Austria 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
- Rail road car truck bolster13 Nov 2025US 2025/0346263 A1National Steel Car Limited
Most cited
By later US patents
- Railway container and car100US 4,478,155 AThe Atchison, Topeka and Santa Fe Railway Company · 1984
- Flexible railway car truck68US 4,938,152 ARailway Engineering Associates, Inc. · 1990
- Articulated lightweight piggyback railcar65US 4,751,882 ACanadian National Railway Company · 1988
- Radial axle railway truck64US 4,134,343 AGeneral Steel Industries, Inc. · 1979
- Damped railway car suspension64US 4,356,775 A1982