- All sections
- B - Performing operations; transporting
- B61L - Guiding railway traffic; ensuring the safety of railway traffic
- B61L 27/14 - Following schedules
Patent holdings for IPC class B61L 27/14
Total number of patents in this class: 23
10-year publication summary
|
0
|
0
|
2
|
1
|
1
|
2
|
3
|
4
|
8
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Transportation IP Holdings, LLC | 843 |
4 |
| Mitsubishi Electric Corporation | 43934 |
3 |
| Amazon Technologies, Inc. | 24422 |
2 |
| BYD Company Limited | 3700 |
2 |
| Korea Railroad Research Institute | 175 |
2 |
| Siemens Mobility GmbH | 1550 |
2 |
| Toshiba Corporation | 12017 |
1 |
| Hitachi, Ltd. | 16452 |
1 |
| Alstom Transport Technologies | 566 |
1 |
| Casco Signal Ltd. | 34 |
1 |
| Tata Consultancy Services Limited | 2066 |
1 |
| Siemens Mobility, Inc. | 329 |
1 |
| Traffic Control Technology Co., Ltd | 31 |
1 |
| Casco Signal Co., Ltd. | 94 |
1 |
| Other owners | 0 |