- All sections
- B - Performing operationstransporting
- B61H - Brakes or other retarding devices specially adapted for rail vehiclesarrangement or disposition thereof in rail vehicles
- B61H 11/10 - Aerodynamic brakes with control flaps, e.g. spoilers, attached to the vehicles
Patent holdings for IPC class B61H 11/10
Total number of patents in this class: 31
10-year publication summary
|
1
|
0
|
1
|
3
|
6
|
2
|
4
|
6
|
3
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| CRRC Qingdao Sifang Rolling Stock Research Institute Co., Ltd. | 85 |
6 |
| CRRC Changchun Railway Vehicles Co., Ltd. | 243 |
5 |
| CRRC Tangshan Co., Ltd. | 255 |
3 |
| Meishan CRRC Brake Science & Technology Co., Ltd. | 26 |
3 |
| CRRC Braking System Co., Ltd. | 13 |
3 |
| Qingdao SRI Technology Co., Ltd. | 18 |
2 |
| CRRC Shandong Co., Ltd. | 29 |
2 |
| CRRC Zhuzhou Locomotive Co., Ltd | 250 |
2 |
| Krri | 4 |
2 |
| Qingdao Sifang Rolling Stock Research Institute Co., Ltd. | 18 |
1 |
| Wabtec Holding Corp. | 369 |
1 |
| CRRC Dalian Co., Ltd. | 59 |
1 |
| Other owners | 0 |