Dry high voltage instrument transformer
US-12597557-B2 · Apr 7, 2026 · US
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Constructions
Constructions · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01F38/26 |
| Official title | Constructions |
| Display label | Constructions |
| Total patents | 23 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 1 |
| 2022 | 7 |
| 2023 | 4 |
| 2024 | 4 |
| 2025 | 2 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Integrated current balancing in coupled transformers
US-12580487-B2 · Mar 17, 2026 · US
Wind power generation system including semiconductor transformer module and control method therefor
US-12374961-B2 · Jul 29, 2025 · US
Voltage generator
US-12317399-B2 · May 27, 2025 · US
Medium or High Voltage Instrument Voltage Transformer
US-2024393370-A1 · Nov 28, 2024 · US
Protection of an AC device
US-12140611-B2 · Nov 12, 2024 · US
Wind power generation system including semiconductor transformer module and control method therefor
US-2024213851-A1 · Jun 27, 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
Integrated current balancing in coupled transformers
US-2023387810-A1 · Nov 30, 2023 · US
Voltage generator
US-2023238175-A1 · Jul 27, 2023 · US
Hv apparatus and a method of manufacturing such apparatus
US-2023223189-A1 · Jul 13, 2023 · US
HV apparatus and a method of manufacturing such apparatus
US-11605501-B2 · Mar 14, 2023 · US
Power supply module and transformer power supply device
US-2022393609-A1 · Dec 8, 2022 · US
Dry High Voltage Instrument Transformer
US-2022384094-A1 · Dec 1, 2022 · 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
Instrument transformer and method to isolate parts
US-2022319770-A1 · Oct 6, 2022 · US
Protection of an ac device
US-2022317157-A1 · Oct 6, 2022 · US
Instrument transformer and method to isolate parts
US-2022262560-A1 · Aug 18, 2022 · US
Double-pole voltage transformer
US-11270830-B2 · Mar 8, 2022 · US
Hv apparatus and a method of manufacturing such apparatus
US-2019198241-A1 · Jun 27, 2019 · US