- 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 5/18 - King-bolts
Patent holdings for IPC class B61F 5/18
Total number of patents in this class: 15
10-year publication summary
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0
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2
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2
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1
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0
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0
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2
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3
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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
|
|---|---|---|
| CRRC Tangshan Co., Ltd. | 251 |
4 |
| Siemens AG Österreich | 315 |
2 |
| CRRC Qingdao Sifang Co., Ltd. | 376 |
2 |
| Hitachi, Ltd. | 15259 |
1 |
| Amsted Rail Company, Inc. | 435 |
1 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3028 |
1 |
| CRR Qigihar Co., Ltd. Dalian Research & Development Center | 1 |
1 |
| CRRC Qigihar Rolling Stock Co., Ltd. | 1 |
1 |
| Kawasaki Railcar Manufacturing Co., Ltd. | 178 |
1 |
| MCS Vermögensverwaltungs Aktiengesellschaft | 2 |
1 |
| Other owners | 0 |