- All sections
- B - Performing operationstransporting
- B61C - Locomotivesmotor railcars
- B61C 15/14 - Maintaining or augmenting the starting or braking power by auxiliary devices and measuresPreventing wheel slippageControlling distribution of tractive effort between driving wheels controlling distribution of tractive effort between driving wheels
Patent holdings for IPC class B61C 15/14
Total number of patents in this class: 30
10-year publication summary
|
4
|
1
|
8
|
2
|
3
|
1
|
3
|
0
|
1
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| GE Global Sourcing LLC | 899 |
3 |
| Transportation IP Holdings, LLC | 924 |
3 |
| Progress Rail Locomotive Inc. | 316 |
2 |
| Siemens Mobility GmbH | 1697 |
2 |
| Siemens AG | 24562 |
1 |
| Alstom Holdings | 604 |
1 |
| ZF Friedrichshafen AG | 7103 |
1 |
| Bombardier Transportation GmbH | 648 |
1 |
| BYD Company Limited | 4713 |
1 |
| Construcciones y Auxiliar de Ferrocarriles, S.A. | 42 |
1 |
| L.B. Foster Rail Technologies, Corp. | 15 |
1 |
| Marketing Impact Limited | 19 |
1 |
| Nordco Inc. | 98 |
1 |
| Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft m.b.H. | 413 |
1 |
| Schaffler IP Pty Limited | 1 |
1 |
| Union Pacific Railroad Company | 67 |
1 |
| Voith Patent GmbH | 2741 |
1 |
| Arrival Ltd | 41 |
1 |
| Zhuzhou CRRC Times Electric Co., Ltd. | 119 |
1 |
| Cecotec Research and Development SL | 50 |
1 |
| Other owners | 4 |