- All sections
- B - Performing operationstransporting
- B61L - Guiding railway trafficensuring the safety of railway traffic
- B61L 19/00 - Arrangements for interlocking between points and signals by means of a single interlocking device
Patent holdings for IPC class B61L 19/00
Total number of patents in this class: 20
10-year publication summary
|
2
|
0
|
4
|
1
|
2
|
1
|
0
|
1
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| DP World Logistics US Holdings, Inc. | 56 |
6 |
| Siemens Mobility, Inc. | 375 |
2 |
| Alstom Holdings | 630 |
1 |
| Alstom Transport Technologies | 109 |
1 |
| BYD Company Limited | 6566 |
1 |
| Hyperloop Technologies, Inc. | 122 |
1 |
| Korea Railroad Research Institute | 184 |
1 |
| Siemens Schweiz AG | 629 |
1 |
| Technological Resources Pty. Limited | 441 |
1 |
| Arrivo Corporation | 1 |
1 |
| Mitsubishi Heavy Industries Engineering, Ltd. | 194 |
1 |
| Siemens Mobility GmbH | 1892 |
1 |
| Beijing National Railway Research & Design Institute of Signal & Communication Co., Ltd. | 40 |
1 |
| Crsc Urban Rail Transit Technology Co., Ltd. | 9 |
1 |
| Other owners | 0 |