- All sections
- B - Performing operationstransporting
- B61L - Guiding railway trafficensuring the safety of railway traffic
- B61L 3/18 - Continuous control along the route using electric current passing between devices along the route and devices on the vehicle or train
Patent holdings for IPC class B61L 3/18
Total number of patents in this class: 19
10-year publication summary
|
4
|
2
|
1
|
1
|
0
|
0
|
1
|
0
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Alstom Holdings | 630 |
4 |
| GE Global Sourcing LLC | 861 |
4 |
| Siemens AG | 23956 |
3 |
| Mitsubishi Electric Corporation | 48351 |
2 |
| Thales Canada Inc. | 104 |
1 |
| Aktiebolaget SKF | 3156 |
1 |
| Dematic Accounting Services GmbH | 9 |
1 |
| McLaren Applied Technologies Limited | 32 |
1 |
| Ground Transportation Systems Canada Inc. | 15 |
1 |
| KB Signaling Inc. | 128 |
1 |
| Other owners | 0 |