- All sections
- B - Performing operationstransporting
- B61L - Guiding railway trafficensuring the safety of railway traffic
- B61L 1/00 - Devices along the route controlled by interaction with the vehicle or train
Patent holdings for IPC class B61L 1/00
Total number of patents in this class: 56
10-year publication summary
|
2
|
2
|
5
|
1
|
7
|
2
|
5
|
3
|
4
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Universal City Studios LLC | 2504 |
5 |
| Siemens AG | 24547 |
4 |
| Siemens Mobility, Inc. | 347 |
4 |
| KB Signaling Inc. | 100 |
4 |
| C.D.L. Electric Company, Inc. | 33 |
3 |
| Canadian Pacific Railway Company | 87 |
2 |
| DB Netz AG | 20 |
2 |
| Hunan CRRC Times Signal & Communication Co., Ltd. | 17 |
2 |
| Zions Bancorporation, N.A. DBA Zions First National Bank | 16 |
2 |
| Asiatic Innovations Pty Ltd | 5 |
2 |
| Thermit Italiana S.r.l. | 2 |
2 |
| Dsrailtech, A.S. | 3 |
2 |
| Progress Rail Services Corp | 234 |
1 |
| Thales Canada Inc. | 105 |
1 |
| ABB Technology AG | 1256 |
1 |
| BYD Company Limited | 4821 |
1 |
| Harsco Corporation | 50 |
1 |
| Hirschmann Automation and Control GmbH | 127 |
1 |
| Kapsch TrafficCom AG | 198 |
1 |
| Metrolab | 24 |
1 |
| Other owners | 14 |