- All sections
- B - Performing operationstransporting
- B61L - Guiding railway trafficensuring the safety of railway traffic
- B61L 99/00 - Subject matter not provided for in other groups of this subclass
Patent holdings for IPC class B61L 99/00
Total number of patents in this class: 59
10-year publication summary
|
5
|
2
|
0
|
1
|
1
|
3
|
4
|
3
|
4
|
11
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 48508 |
6 |
| Alstom Holdings | 633 |
3 |
| Westinghouse Air Brake Technologies Corporation | 486 |
3 |
| GE Global Sourcing LLC | 859 |
3 |
| Siemens Mobility GmbH | 1904 |
3 |
| Beijing Jiaotong University | 178 |
2 |
| Casco Signal Ltd. | 84 |
2 |
| POSCO Holdings Inc. | 698 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 9271 |
1 |
| Toshiba Corporation | 12754 |
1 |
| Robert Bosch GmbH | 44427 |
1 |
| Siemens S.A.S. | 43 |
1 |
| Thales Canada Inc. | 104 |
1 |
| BNSF Railway Company | 568 |
1 |
| BYD Company Limited | 6681 |
1 |
| Custom Diamond International Inc. | 1 |
1 |
| East China Jiaotong University | 49 |
1 |
| Harsco Technologies LLC | 138 |
1 |
| Hyperloop Technologies, Inc. | 122 |
1 |
| Meteorcomm LLC | 56 |
1 |
| Other owners | 23 |