- All sections
- B - Performing operationstransporting
- B61L - Guiding railway trafficensuring the safety of railway traffic
- B61L 23/32 - 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 with provision for the blocking of passing sidings
Patent holdings for IPC class B61L 23/32
Total number of patents in this class: 4
10-year publication summary
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| General Electric Company | 13915 |
1 |
| Siemens AG | 23996 |
1 |
| Progress Rail Locomotive Inc. | 337 |
1 |
| GE Global Sourcing LLC | 861 |
1 |
| Other owners | 0 |