- All sections
- B - Performing operationstransporting
- B61C - Locomotivesmotor railcars
- B61C 9/44 - Transmission systems in or for locomotives or motor railcars with electric motor propulsion with hollow transmission shaft concentric with wheel axis
Patent holdings for IPC class B61C 9/44
Total number of patents in this class: 22
10-year publication summary
|
2
|
1
|
0
|
2
|
3
|
3
|
2
|
3
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sueddeutsche Gelenkscheibenfabrik GmbH & Co. KG | 36 |
3 |
| Siemens Mobility GmbH | 1721 |
3 |
| CRRC Datong Co., Ltd. | 33 |
3 |
| Siemens AG | 24453 |
2 |
| KWD Kupplungswerk Dresden GmbH | 18 |
2 |
| Voith Patent GmbH | 2762 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 8752 |
1 |
| ZF Friedrichshafen AG | 7156 |
1 |
| Zhuzhou Times New Material Technology Co., Ltd. | 64 |
1 |
| Groupe Mecalac | 24 |
1 |
| Flender GmbH | 372 |
1 |
| CRRC Zhuzhou Locomotive Co., Ltd | 258 |
1 |
| Vecon Trading and Engineering, ANDREAS Fiedler | 1 |
1 |
| Other owners | 0 |