- All sections
- B - Performing operationstransporting
- B61L - Guiding railway trafficensuring the safety of railway traffic
- B61L 3/20 - Continuous control along the route using electric current passing between devices along the route and devices on the vehicle or train employing different frequencies or coded pulse groups
Patent holdings for IPC class B61L 3/20
Total number of patents in this class: 8
10-year publication summary
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0
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0
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1
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0
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0
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1
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0
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0
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0
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1
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| GE Global Sourcing LLC | 861 |
3 |
| Siemens AG | 23972 |
1 |
| Solar Transportation Technologies, Inc. | 1 |
1 |
| TransTech of South Carolina, Inc., DBA TransTech Power Transfer Systems | 7 |
1 |
| Siemens Mobility GmbH | 1892 |
1 |
| CRRC Ziyang Co., Ltd. | 38 |
1 |
| Other owners | 0 |