B61F 5/48
Trailing or leading bogies for locomotives or motor- driven railcars
Official title: Trailing or leading bogies for locomotives or motor- driven railcars (B61F5/40 takes precedence)
B61F5/48 (Trailing or leading bogies for locomotives or motor- driven railcars) appears on 14 US grants and 4 published applications in this corpus.
Search patents in B61F- Granted patents
- 14
- Published applications
- 4
- Assignees
- 8
- Inventors
- 23
- Latest grant
- 22 Aug 2023
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 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
| 2022 | 1 | 1 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Railcar driving bogie22 Aug 2023US 11,731,669 B2Kawasaki Railcar Manufacturing Co., Ltd.
- Traction mechanism, bogie assembly, and straddle-type monorail vehicle5 Jul 2022US 11,377,129 B2BYD Company Limited
- Traction mechanism, bogie assembly, and straddle-type monorail vehicle2 Nov 2021US 11,161,530 B2BYD Company Limited
- Self-steering trucks with side bearings supporting the entire weight of the vehicle29 Dec 1992US 5,174,218 ARailway Engineering Associates, Inc.
- Self-steering railway truck19 Mar 1991US 5,000,097 ARailway Engineering Associates, Inc.
- Traction mechanism, bogie assembly, and straddle-type monorail vehicle17 Mar 2022US 2022/0081012 A1BYD Company Limited
- Railcar driving bogie3 Jun 2021US 2021/0163048 A1Kawasaki Jukogyo Kabushiki Kaisha
- Traction mechanism, bogie assembly, and straddle-type monorail vehicle12 Sep 2019US 2019/0276056 A1BYD Company Limited
- High efficiency semi-articulated railway power bogie25 Aug 2005US 2005/0183625 A1
Most cited
By later US patents
- Self-steering trucks with side bearings supporting the entire weight of the vehicle45US 5,174,218 ARailway Engineering Associates, Inc. · 1992
- Steering railway vehicle trucks40US 4,332,201 ABritish Railways Board · 1982
- Self-steering railway truck38US 5,000,097 ARailway Engineering Associates, Inc. · 1991
- High efficiency semi-articulated railway power truck21US 4,485,743 AGeneral Motors Corporation · 1984
- Motorized railway vehicle truck14US 4,353,309 ABritish Railways Board · 1982