Fuse tripping acceleration arrangement, current transformer arrangement and energy storage system
US-2025095911-A1 · Mar 20, 2025 · US
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Voltage transformers
Voltage transformers · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01F38/24 |
| Official title | Voltage transformers |
| Display label | Voltage transformers |
| Total patents | 17 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 3 |
| 2020 | 2 |
| 2021 | 3 |
| 2022 | 3 |
| 2024 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Instrument transformer
US-2024221997-A1 · Jul 4, 2024 · US
Cover unit for a converter head of a high-voltage converter device, converter head and high-voltage converter device
US-11984247-B2 · May 14, 2024 · US
Cover unit for a converter head of a high-voltage converter device, converter head and high-voltage converter device
US-2022375674-A1 · Nov 24, 2022 · US
Radio transmitter with transmit signal strength indicator and method thereof
US-11380481-B2 · Jul 5, 2022 · US
Transformer for vacuum capacitor type instrument
US-11342127-B2 · May 24, 2022 · US
High-fidelity voltage measurement using a capacitance-coupled voltage transformer
US-11105832-B2 · Aug 31, 2021 · US
Radio transmitter with transmit signal strength indicator and method thereof
US-2021217557-A1 · Jul 15, 2021 · US
High-fidelity voltage measurement using a capacitance-coupled voltage transformer
US-2021018538-A1 · Jan 21, 2021 · US
Curing agent for thermosetting epoxy resins, and a process for the preparation of insulation systems for electrical engineering
US-10851201-B2 · Dec 1, 2020 · US
Transformer for vacuum capacitor type instrument
US-2020357572-A1 · Nov 12, 2020 · US
High-fidelity voltage measurement using resistive divider in a capacitance-coupled voltage transformer
US-10345363-B2 · Jul 9, 2019 · US
Coaxial design for secondary unit
US-10288647-B2 · May 14, 2019 · US
High-fidelity voltage measurement using resistive divider in a capacitance-coupled voltage transformer
US-2019094287-A1 · Mar 28, 2019 · US
A Curing Agent For Thermosetting Epoxy Resins, and a Process for the Preparation of Insulation Systems for Electrical Engineering
US-2018142058-A1 · May 24, 2018 · US
Coaxial design for secondary unit
US-2017307659-A1 · Oct 26, 2017 · US
Vacuum capacitor-voltage-transformer
US-9159488-B2 · Oct 13, 2015 · US