- All sections
- B - Performing operationstransporting
- B61L - Guiding railway trafficensuring the safety of railway traffic
- B61L 27/40 - Handling position reports or trackside vehicle data
Patent holdings for IPC class B61L 27/40
Total number of patents in this class: 171
10-year publication summary
|
0
|
2
|
6
|
18
|
27
|
22
|
28
|
30
|
29
|
13
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens Mobility GmbH | 1844 |
22 |
| BNSF Railway Company | 518 |
12 |
| Transportation IP Holdings, LLC | 977 |
9 |
| Casco Signal Ltd. | 71 |
7 |
| Westinghouse Air Brake Technologies Corporation | 490 |
7 |
| Crsc Research & Design Institute Group Co., Ltd. | 158 |
7 |
| Mitsubishi Electric Corporation | 47683 |
6 |
| BYD Company Limited | 6271 |
6 |
| Metrom Rail, LLC | 54 |
6 |
| Amsted Rail Company, Inc. | 429 |
5 |
| Parallel Systems, Inc. | 40 |
5 |
| Casco Signal Co., Ltd. | 176 |
5 |
| Cattron North America, Inc. | 145 |
4 |
| Mitsubishi Heavy Industries, Ltd. | 9034 |
3 |
| Progress Rail Services Corp | 222 |
3 |
| TTX Company | 120 |
3 |
| Traffic Control Technology Co., Ltd | 31 |
3 |
| Hitachi, Ltd. | 15920 |
2 |
| Alstom Holdings | 625 |
2 |
| GlobalFlows, Inc. | 8 |
2 |
| Other owners | 52 |