- All sections
- B - Performing operations; transporting
- B61L - Guiding railway traffic; ensuring the safety of railway traffic
- B61L 25/02 - Indicating or recording positions or identities of vehicles or vehicle trains
Patent holdings for IPC class B61L 25/02
Total number of patents in this class: 1689
10-year publication summary
|
90
|
175
|
150
|
191
|
175
|
205
|
190
|
145
|
145
|
53
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 43934 |
111 |
| Siemens Mobility GmbH | 1550 |
108 |
| Siemens AG | 24990 |
86 |
| Westinghouse Air Brake Technologies Corporation | 521 |
69 |
| Hitachi, Ltd. | 16452 |
51 |
| GE Global Sourcing LLC | 944 |
47 |
| Ground Transportation Systems Canada Inc. | 116 |
46 |
| Transportation IP Holdings, LLC | 843 |
44 |
| Alstom Transport Technologies | 566 |
43 |
| Amsted Rail Company, Inc. | 432 |
29 |
| Siemens Mobility, Inc. | 329 |
27 |
| General Electric Company | 18133 |
26 |
| Thales Canada Inc. | 107 |
23 |
| BNSF Railway Company | 328 |
21 |
| Metrom Rail, LLC | 47 |
19 |
| Superpedestrian Ipco, LLC | 26 |
19 |
| BYD Company Limited | 3700 |
17 |
| Knorr-Bremse Systeme fur Schienenfahrzeuge GmbH | 566 |
17 |
| Harsco Technologies LLC | 162 |
16 |
| Kyosan Electric Mfg. Co., Ltd. | 167 |
16 |
| Other owners | 854 |