- All sections
- B - Performing operations; transporting
- B61F - Rail vehicle suspensions, e.g. underframes, bogies or arrangements of wheel axles; rail vehicles for use on tracks of different width; preventing derailing of rail vehicles; wheel guards, obstruction removers or the like for rail vehicles
- B61F 5/20 - Centre bearings or other swivel connections between underframes and bolsters or bogies with springs allowing transverse movements
Patent holdings for IPC class B61F 5/20
Total number of patents in this class: 9
10-year publication summary
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1
|
1
|
0
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0
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3
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0
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0
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0
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0
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0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Amsted Rail Company, Inc. | 437 |
2 |
| Kawasaki Railcar Manufacturing Co., Ltd. | 176 |
2 |
| Alstom Technology Ltd | 1146 |
1 |
| Alstom Transport Technologies | 272 |
1 |
| Stäubli Tec-Systems GmbH | 10 |
1 |
| Aktiebolaget SKF | 98 |
1 |
| Ganz Motor Kft. | 1 |
1 |
| Other owners | 0 |