B61F 5/20
With springs allowing transverse movements
Official title: with springs allowing transverse movements
B61F5/20 (With springs allowing transverse movements) appears on 19 US grants and 5 published applications in this corpus.
Search patents in B61F- Granted patents
- 19
- Published applications
- 5
- Assignees
- 14
- Inventors
- 32
- Latest grant
- 22 Dec 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 2 |
| 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 | 1 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Sensorized axle box-bearing unit for supporting a railway axle22 Dec 2020US 10,870,440 B2Aktiebolaget Skf
- Bogie18 Aug 2020US 10,745,036 B2Crrc Tangshan Co., Ltd.
- Railcar bogie27 Jun 2017US 9,688,292 B2Kawasaki Jukogyo Kabushiki Kaisha
- Railway car and bogie of railway car27 Dec 2005US 6,978,719 B2Hitachi, Ltd.
- Swivel coupling22 May 2001US 6,234,702 B1GEC Alsthom Transport SA
- Bogie25 Apr 2019US 2019/0118840 A1Crrc Tangshan Co., Ltd.
- Sensorized axle box-bearing unit for supporting a railway axle5 Oct 2017US 2017/0282940 A1Aktiebolaget Skf
- Railcar bogie24 Mar 2016US 2016/0082985 A1Kawasaki Jukogyo Kabushiki Kaisha
- Railway car and bogie of railway car28 Apr 2005US 2005/0087093 A1
- Railway car and bogie of railway car28 Apr 2005US 2005/0087094 A1Hitachi, Ltd.
Most cited
By later US patents
- Articulated coupling for two rail vehicles33US 4,942,824 ASociete Anonyme dite: Alsthom · 1990
- Elastic bearing23US 5,271,678 ACaoutchouc Manufacture et Plastiques · 1993
- Dampers for mechanical railway springs19US 4,732,372 AThe Budd Company · 1988
- Articulated coupling and a method of absorbing energy between two rail vehicles18US 5,615,786 AGEC Alsthom Transport SA · 1997
- Center bearing socket construction14US 4,245,564 AWaggon Union GmbH · 1981