B61F 5/08
Incorporating rubber springs
Official title: incorporating rubber springs
B61F5/08 (Incorporating rubber springs) appears on 39 US grants and 25 published applications in this corpus.
Search patents in B61F- Granted patents
- 39
- Published applications
- 25
- Assignees
- 34
- Inventors
- 90
- Latest grant
- 29 Oct 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 5 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 4 |
| 2015 | 2 | 3 |
| 2016 | 3 | 1 |
| 2017 | 1 | 2 |
| 2018 | 1 | 0 |
| 2019 | 3 | 4 |
| 2020 | 1 | 1 |
| 2021 | 2 | 5 |
| 2022 | 2 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Train suspension device and suspended monorail train29 Oct 2024US 12,128,935 B2Crrc Zhuzhou Locomotive Co., Ltd.
- Method for improving fatigue resistance performance of locomotive rubber-metal pad and locomotive rubber-metal pad25 Oct 2022US 11,479,274 B2Zhuzhou Times New Material Technology Co., Ltd.
- Suspension system, bogie assembly with same, and rail vehicle16 Aug 2022US 11,414,106 B2BYD Company Limited
- Frame of bogie28 Dec 2021US 11,208,123 B2Crrc Tangshan Co., Ltd.
- Bolster of bogie10 Aug 2021US 11,084,510 B2Crrc Tangshan Co., Ltd.
- Bogie with improved secondary suspension system, and railway vehicle comprising such bogie18 Apr 2024US 2024/0124034 A1ALSTOM Holdings
- Emu bogie and rubber-tired train11 Jan 2024US 2024/0010271 A1CRRC Nanjing Puzhen Co., Ltd.
- Bogie for railway vehicle25 Aug 2022US 2022/0266877 A1Hitachi, Ltd.
- Train suspension device and suspended monorail train16 Dec 2021US 2021/0387656 A1Crrc Zhuzhou Locomotive Co., Ltd.
- Method for improving fatigue resistance performance of locomotive rubber-metal pad and locomotive rubber-metal pad18 Nov 2021US 2021/0354733 A1Zhuzhou Times New Material Technology Co., Ltd.
Most cited
By later US patents
- Damped railway car suspension64US 4,356,775 A1982
- Railway bogie with frame having selective deformability37US 5,417,163 ASambre et Meuse (Societe Anonyme) · 1995
- Snubbed railway vehicle bogie20US 3,952,669 A1976
- Air spring18US 6,257,561 B1Kawasaki Jukogyu Kabushiki Kaisha · 2001
- Swinging railway bogie bolster17US 3,937,153 AA.N.F. - Frangeco · 1976