B61F 15/02
Axle-boxes: with journal bearings
Official title: with journal bearings
B61F15/02 (Axle-boxes: with journal bearings) appears on 38 US grants and 32 published applications in this corpus.
Search patents in B61F- Granted patents
- 38
- Published applications
- 32
- Assignees
- 14
- Inventors
- 55
- Latest grant
- 28 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 1 |
| 2009 | 1 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 2 |
| 2014 | 3 | 3 |
| 2015 | 0 | 1 |
| 2016 | 4 | 3 |
| 2017 | 2 | 5 |
| 2018 | 1 | 1 |
| 2019 | 5 | 8 |
| 2020 | 2 | 0 |
| 2021 | 7 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 2 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Rubber bushing for railroad trucks28 Oct 2025US 12,454,292 B2Sumitomo Riko Company Limited
- Wheel set intermediate frame for a rail vehicle10 Sep 2024US 12,084,097 B2Siemens Mobility GmbH
- Railcar axle box and method of producing the same5 Oct 2021US 11,136,051 B2Kawasaki Jukogyo Kabushiki Kaisha
- Railcar adapter for connecting a railcar body to a bearing6 Jul 2021US 11,052,928 B2Aktiebolaget Skf
- Railcar adapter for connecting a railcar body to a bearing13 Apr 2021US 10,974,740 B2Aktiebolaget Skf
- Railway self-generating express freight car bogie19 Jan 2023US 2023/0018010 A1Crrc Meishan Co., Ltd.
- Rubber bushing for railroad trucks5 Jan 2023US 2023/0001964 A1Sumitomo Riko Company Limited
- Wheel set intermediate frame for a rail vehicle16 Sep 2021US 2021/0284204 A1Siemens Mobility GmbH
- Railcar adapter for connecting a railcar body to a bearing5 Dec 2019US 2019/0367052 A1Aktiebolaget Skf
- Railcar adapter for connecting a railcar body to a bearing5 Dec 2019US 2019/0367053 A1Aktiebolaget Skf
Most cited
By later US patents
- Rail road car truck and fittings therefor51US 7,143,700 B2National Steel Car Limited · 2006
- Rail road car truck and members thereof49US 7,845,288 B2National Steel Car Limited · 2010
- Frameless radial truck45US 4,676,172 AStandard Research and Design Corporation · 1987
- Pedestal wear plate37US 4,428,303 ATransDyne, Inc. · 1984
- Rail road car truck and fittings therefor36US 7,497,169 B2National Steel Car Limited · 2009