- All sections
- B - Performing operationstransporting
- B61L - Guiding railway trafficensuring the safety of railway traffic
- B61L 29/08 - Operation of gatesCombined operation of gates and signals
Patent holdings for IPC class B61L 29/08
Total number of patents in this class: 29
10-year publication summary
|
1
|
4
|
0
|
1
|
2
|
3
|
3
|
2
|
7
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens Mobility, Inc. | 362 |
9 |
| C.D.L. Electric Company, Inc. | 33 |
7 |
| Cavnue Technology, LLC | 43 |
4 |
| Railway Equipment Company, Inc. | 39 |
2 |
| Hitachi, Ltd. | 15599 |
1 |
| Westinghouse Air Brake Technologies Corporation | 503 |
1 |
| Modesto and Empire Traction Company | 5 |
1 |
| Siemens Mobility GmbH | 1750 |
1 |
| Transportation IP Holdings, LLC | 939 |
1 |
| Crsc Research & Design Institute Group Co., Ltd. | 134 |
1 |
| KB Signaling Inc. | 100 |
1 |
| Other owners | 0 |