B61F 5/16
Centre bearings or other swivel connections between underframes and bolsters or bogies
B61F5/16 (Centre bearings or other swivel connections between underframes and bolsters or bogies) appears on 138 US grants and 50 published applications in this corpus.
Search patents in B61F- Granted patents
- 138
- Published applications
- 50
- Assignees
- 85
- Inventors
- 258
- Latest grant
- 27 Feb 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 8 | 0 |
| 1980 | 9 | 0 |
| 1981 | 7 | 0 |
| 1982 | 13 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 5 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 3 |
| 2005 | 3 | 2 |
| 2006 | 2 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 2 |
| 2011 | 2 | 0 |
| 2012 | 1 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 3 |
| 2015 | 0 | 2 |
| 2016 | 2 | 5 |
| 2017 | 3 | 5 |
| 2018 | 4 | 10 |
| 2019 | 3 | 7 |
| 2020 | 9 | 1 |
| 2021 | 7 | 2 |
| 2022 | 0 | 0 |
| 2023 | 2 | 3 |
| 2024 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Bulk metallic glass load cell27 Feb 2024US 11,912,319 B2Freightlucid, LLC
- Railcar bogie frame12 Sep 2023US 11,753,052 B2Kawasaki Railcar Manufacturing Co., Ltd.
- Articulated rail coupler21 Mar 2023US 11,608,094 B2Kaci Terminals System, Ltd.
- Railway vehicle stopper7 Sep 2021US 11,110,942 B2Kawasaki Jukogyo Kabushiki Kaisha
- Articulated railway vehicle, with an improved modularity10 Aug 2021US 11,084,506 B2Alstom Transport Technologies
- Straddle type monorail vehicle and assembly method thereof11 Apr 2024US 2024/0116546 A1Hitachi, Ltd.
- Articulated rail coupler5 Oct 2023US 2023/0311957 A1Kaci Terminals System, Ltd.
- A centre pivot liner20 Apr 2023US 2023/0118090 A1
- Position observation system and storage medium storing position observation program26 Jan 2023US 2023/0025381 A1Kabushiki Kaisha Toshiba
- Bulk Metallic Glass Load Cell25 Feb 2021US 2021/0053595 A1Freightlucid, LLC
Most cited
By later US patents
- Radial axle railway truck64US 4,134,343 AGeneral Steel Industries, Inc. · 1979
- Self-steering railway truck64US 4,151,801 ASouth African Inventions Development Corporation · 1979
- Articulated railway coupling58US 4,258,628 AAMSTED Industries Incorporated · 1981
- Railroad car sill-articulating device member connection55US 4,336,758 AAMSTED Industries Incorporated · 1982
- Self steering railway truck54US 4,136,620 ASouth African Inventions Development Corporation · 1979