- All sections
- B - Performing operationstransporting
- B61L - Guiding railway trafficensuring the safety of railway traffic
- B61L 23/30 - Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in two directions over the same pair of rails using automatic section blocking
Patent holdings for IPC class B61L 23/30
Total number of patents in this class: 22
10-year publication summary
|
1
|
2
|
8
|
2
|
1
|
1
|
2
|
0
|
0
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens Mobility GmbH | 1742 |
4 |
| Siemens AG | 24386 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 8787 |
2 |
| Metrom Rail, LLC | 51 |
2 |
| Coordem Transport Tech. Co., Ltd. | 6 |
2 |
| Casco Signal Ltd. | 59 |
1 |
| East Japan Railway Company | 66 |
1 |
| OptaSense Holdings Limited | 194 |
1 |
| Optasense, Inc. | 12 |
1 |
| RapidSOS, Inc. | 177 |
1 |
| Siemens Rail Automation Holdings Limited | 10 |
1 |
| Technological Resources Pty. Limited | 458 |
1 |
| Dual Inventive Holding B.V. | 16 |
1 |
| Transportation IP Holdings, LLC | 934 |
1 |
| Crsc Research & Design Institute Group Co., Ltd. | 134 |
1 |
| Other owners | 0 |