- 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: 1841
10-year publication summary
|
162
|
136
|
172
|
161
|
175
|
169
|
132
|
139
|
128
|
97
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens Mobility GmbH | 1721 |
118 |
| Mitsubishi Electric Corporation | 46197 |
116 |
| Siemens AG | 24453 |
85 |
| Westinghouse Air Brake Technologies Corporation | 503 |
67 |
| Hitachi, Ltd. | 15513 |
55 |
| Transportation IP Holdings, LLC | 931 |
50 |
| GE Global Sourcing LLC | 892 |
46 |
| BNSF Railway Company | 429 |
34 |
| Amsted Rail Company, Inc. | 439 |
32 |
| Siemens Mobility, Inc. | 359 |
32 |
| Hitachi Rail GTS Canada Inc. | 68 |
29 |
| Alstom Holdings | 610 |
27 |
| BYD Company Limited | 5023 |
24 |
| General Electric Company | 13810 |
23 |
| Thales Canada Inc. | 105 |
23 |
| Metrom Rail, LLC | 51 |
22 |
| Harsco Technologies LLC | 147 |
19 |
| Superpedestrian Ipco, LLC | 26 |
19 |
| Knorr-Bremse Systeme fur Schienenfahrzeuge GmbH | 573 |
18 |
| Hitachi Rail GTS Canada | 41 |
18 |
| Other owners | 984 |