- All sections
- B - Performing operationstransporting
- B61L - Guiding railway trafficensuring the safety of railway traffic
- B61L 27/70 - Details of trackside communication
Patent holdings for IPC class B61L 27/70
Total number of patents in this class: 224
10-year publication summary
|
0
|
0
|
0
|
8
|
17
|
30
|
35
|
52
|
37
|
33
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens Mobility GmbH | 1732 |
24 |
| Casco Signal Ltd. | 59 |
11 |
| Transportation IP Holdings, LLC | 933 |
11 |
| Metrom Rail, LLC | 51 |
10 |
| Mitsubishi Electric Corporation | 46346 |
9 |
| Amsted Rail Company, Inc. | 439 |
7 |
| BNSF Railway Company | 433 |
7 |
| BYD Company Limited | 5081 |
7 |
| Casco Signal Co., Ltd. | 146 |
7 |
| Parallel Systems, Inc. | 37 |
6 |
| Westinghouse Air Brake Technologies Corporation | 503 |
5 |
| Progress Rail Services Corp | 236 |
4 |
| Meteorcomm LLC | 51 |
4 |
| Hyperloop Technologies, Inc. | 180 |
3 |
| Thales Management & Services Deutschland GmbH | 62 |
3 |
| Siemens Mobility, Inc. | 361 |
3 |
| Crsc Research & Design Institute Group Co., Ltd. | 123 |
3 |
| Hitachi, Ltd. | 15537 |
2 |
| Georgia Tech Research Corporation | 2758 |
2 |
| Fugro Technology B.V. | 41 |
2 |
| Other owners | 94 |