- 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 5/10 - Bolster supports or mountings incorporating fluid springs
Patent holdings for IPC class B61F 5/10
Total number of patents in this class: 161
10-year publication summary
|
19
|
18
|
16
|
7
|
6
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5
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8
|
4
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5
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kawasaki Railcar Manufacturing Co., Ltd. | 186 |
20 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3289 |
14 |
| Sumitomo Electric Industries, Ltd. | 16368 |
12 |
| CRRC Tangshan Co., Ltd. | 282 |
9 |
| Bridgestone Corporation | 7270 |
8 |
| Nippon Steel & Sumitomo Metal Corporation | 1981 |
8 |
| Siemens Mobility Austria GmbH | 195 |
7 |
| Firestone Industrial Products Company, LLC | 326 |
6 |
| Hitachi, Ltd. | 16206 |
5 |
| Siemens AG Österreich | 318 |
5 |
| ContiTech Luftfedersysteme GmbH | 84 |
5 |
| Bombardier Transportation GmbH | 559 |
4 |
| KYB Corporation | 1436 |
4 |
| Nippon Sharyo, Ltd. | 78 |
4 |
| Siemens AG | 23956 |
3 |
| CRRC Qingdao Sifang Co., Ltd. | 410 |
3 |
| Toyo Tire & Rubber Co., Ltd. | 476 |
3 |
| CRRC Zhuzhou Locomotive Co., Ltd | 264 |
3 |
| CRRC Changchun Railway Vehicles Co., Ltd. | 281 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 9204 |
2 |
| Other owners | 33 |