- All sections
- B - Performing operationstransporting
- B61L - Guiding railway trafficensuring the safety of railway traffic
- B61L 25/02 - Indicating or recording positions or identities of vehicles or trains
Patent holdings for IPC class B61L 25/02
Total number of patents in this class: 1915
10-year publication summary
|
136
|
172
|
161
|
175
|
169
|
134
|
142
|
128
|
143
|
10
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens Mobility GmbH | 1793 |
123 |
| Mitsubishi Electric Corporation | 47302 |
117 |
| Siemens AG | 24294 |
83 |
| Westinghouse Air Brake Technologies Corporation | 498 |
67 |
| Hitachi, Ltd. | 15792 |
56 |
| Transportation IP Holdings, LLC | 951 |
54 |
| GE Global Sourcing LLC | 881 |
46 |
| BNSF Railway Company | 487 |
43 |
| Siemens Mobility, Inc. | 368 |
34 |
| Amsted Rail Company, Inc. | 433 |
30 |
| Hitachi Rail GTS Canada Inc. | 72 |
30 |
| BYD Company Limited | 5812 |
25 |
| Alstom Holdings | 621 |
23 |
| Thales Canada Inc. | 105 |
23 |
| Metrom Rail, LLC | 52 |
23 |
| General Electric Company | 13767 |
22 |
| Harsco Technologies LLC | 146 |
19 |
| Superpedestrian Ipco, LLC | 26 |
19 |
| Knorr-Bremse Systeme fur Schienenfahrzeuge GmbH | 569 |
18 |
| Hitachi Rail GTS Canada | 41 |
18 |
| Other owners | 1042 |