System for controlling vital wayside devices of a railway network, and vital switch for such vital devices
US-11724724-B2 · Aug 15, 2023 · US
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Common line wire control using currents of different amplitudes, polarities, frequencies, or the like
Common line wire control using currents of different amplitudes, polarities, frequencies, or the like · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B61L7/083 |
| Official title | {Common line wire control using currents of different amplitudes, polarities, frequencies, or the like} |
| Display label | Common line wire control using currents of different amplitudes, polarities, frequencies, or the like |
| Total patents | 2 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears stable based on the most recent years.
| Year | Patents |
|---|---|
| 2022 | 1 |
| 2023 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.