- All sections
- B - Performing operationstransporting
- B61C - Locomotivesmotor railcars
- B61C 9/50 - Transmission systems in or for locomotives or motor railcars with electric motor propulsion with motors supported on vehicle frames and driving axles, e.g. axle or nose suspension in bogies
Patent holdings for IPC class B61C 9/50
Total number of patents in this class: 140
10-year publication summary
|
8
|
13
|
15
|
19
|
7
|
12
|
12
|
7
|
6
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BYD Company Limited | 5944 |
12 |
| Bombardier Transportation GmbH | 633 |
10 |
| Siemens Mobility Austria GmbH | 180 |
10 |
| Siemens Mobility GmbH | 1800 |
9 |
| CRRC Zhuzhou Locomotive Co., Ltd | 264 |
9 |
| Siemens AG Österreich | 317 |
7 |
| Voith Patent GmbH | 2768 |
7 |
| Siemens AG | 24291 |
6 |
| CRRC Qingdao Sifang Co., Ltd. | 395 |
6 |
| Alstom Holdings | 620 |
5 |
| Intramotev Inc. | 16 |
5 |
| Stadler Rail AG | 36 |
4 |
| Mitsubishi Electric Corporation | 47380 |
3 |
| ZF Friedrichshafen AG | 7213 |
3 |
| CRRC Tangshan Co., Ltd. | 268 |
3 |
| CRRC Zhuzhou Electric Co., Ltd | 60 |
3 |
| RHT Rail Haul Technologies Corp. | 3 |
3 |
| Construcciones y Auxiliar de Ferrocarriles, S.A. | 43 |
2 |
| Korea Railroad Research Institute | 179 |
2 |
| Transportation IP Holdings, LLC | 957 |
2 |
| Other owners | 29 |