- 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: 1930
10-year publication summary
|
151
|
191
|
175
|
205
|
193
|
149
|
159
|
137
|
150
|
31
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens Mobility GmbH | 1839 |
125 |
| Mitsubishi Electric Corporation | 47625 |
118 |
| Siemens AG | 24199 |
82 |
| Westinghouse Air Brake Technologies Corporation | 490 |
66 |
| Hitachi, Ltd. | 15904 |
58 |
| Transportation IP Holdings, LLC | 975 |
54 |
| GE Global Sourcing LLC | 866 |
46 |
| BNSF Railway Company | 517 |
45 |
| Siemens Mobility, Inc. | 374 |
35 |
| Hitachi Rail GTS Canada Inc. | 81 |
35 |
| Amsted Rail Company, Inc. | 429 |
30 |
| KB Signaling Inc. | 121 |
26 |
| BYD Company Limited | 6250 |
25 |
| Metrom Rail, LLC | 54 |
24 |
| Alstom Holdings | 624 |
23 |
| Thales Canada Inc. | 107 |
23 |
| General Electric Company | 13806 |
21 |
| Harsco Technologies LLC | 145 |
19 |
| Superpedestrian Ipco, LLC | 26 |
19 |
| Knorr-Bremse Systeme fur Schienenfahrzeuge GmbH | 570 |
18 |
| Other owners | 1038 |