- All sections
- B - Performing operationstransporting
- B61L - Guiding railway trafficensuring the safety of railway traffic
- B61L 3/08 - Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control controlling electrically
Patent holdings for IPC class B61L 3/08
Total number of patents in this class: 34
10-year publication summary
|
6
|
4
|
7
|
1
|
2
|
1
|
4
|
1
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Nippon Signal Co., Ltd. | 57 |
3 |
| GE Global Sourcing LLC | 861 |
3 |
| Mitsubishi Electric Corporation | 48351 |
2 |
| BYD Company Limited | 6602 |
2 |
| Metrom Rail, LLC | 55 |
2 |
| Mitsubishi Electric Research Laboratories, Inc. | 1138 |
2 |
| Progress Rail Locomotive Inc. | 337 |
2 |
| Siemens Mobility, Inc. | 375 |
2 |
| Transportation IP Holdings, LLC | 1009 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 9204 |
1 |
| Bayerische Motoren Werke Aktiengesellschaft | 15452 |
1 |
| Rockwell Automation Technologies, Inc. | 2810 |
1 |
| Siemens Industry, Inc. | 1589 |
1 |
| Meteorcomm LLC | 54 |
1 |
| Murata Machinery, Ltd. | 1612 |
1 |
| New York Air Brake LLC | 271 |
1 |
| Westinghouse Air Brake Technologies Corporation | 486 |
1 |
| Mitsubishi Heavy Industries Engineering, Ltd. | 194 |
1 |
| Traffic Control Technology Co., Ltd | 31 |
1 |
| CRRC Nanjing Puzhen Co., Ltd. | 104 |
1 |
| Other owners | 3 |