- All sections
- B - Performing operationstransporting
- B61F - Rail vehicle suspensions, e.g. underframes, bogies or arrangements of wheel axlesrail vehicles for use on tracks of different widthpreventing derailing of rail vehicleswheel guards, obstruction removers or the like for rail vehicles
- B61F 5/28 - Axle-boxes integral with, or directly secured to, vehicle or bogie underframes
Patent holdings for IPC class B61F 5/28
Total number of patents in this class: 17
10-year publication summary
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2
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3
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1
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1
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1
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1
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1
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0
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0
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0
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Aktiebolaget SKF | 3076 |
2 |
| Amsted Rail Company, Inc. | 429 |
2 |
| Alstom Holdings | 623 |
1 |
| CRRC Qingdao Sifang Co., Ltd. | 398 |
1 |
| CRRC Tangshan Co., Ltd. | 276 |
1 |
| Electro-Motive Diesel, Inc. | 70 |
1 |
| Voith Patent GmbH | 2778 |
1 |
| Speedinnov | 21 |
1 |
| CRRC Meishan Co., Ltd. | 27 |
1 |
| CRRC Yangtze Co., Ltd. | 84 |
1 |
| Siemens Mobility GmbH | 1839 |
1 |
| CRRC Zhuzhou Locomotive Co., Ltd | 264 |
1 |
| Siemens Mobility Austria GmbH | 184 |
1 |
| Myles E. Paisley | 1 |
1 |
| Kawasaki Railcar Manufacturing Co., Ltd. | 183 |
1 |
| Other owners | 0 |