Conversion circuit
US-2026039192-A1 · Feb 5, 2026 · US
Preventing or reducing no-load losses or reactive currents
Preventing or reducing no-load losses or reactive currents · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01F27/341 |
| Official title | {Preventing or reducing no-load losses or reactive currents} |
| Display label | Preventing or reducing no-load losses or reactive currents |
| Total patents | 29 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2017 | 2 |
| 2018 | 4 |
| 2019 | 8 |
| 2020 | 1 |
| 2021 | 3 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Coil device
US-12462965-B2 · Nov 4, 2025 · US
High power high current transformer
US-2025299874-A1 · Sep 25, 2025 · US
Hysteretance component and application method thereof
US-2025157726-A1 · May 15, 2025 · US
Bus bar for minimizing AC loss in transformer and method of designing the same
US-11990270-B2 · May 21, 2024 · US
Transformer with flux linkage control and method for suppressing magnetizing inrush current of transformer
US-11735903-B2 · Aug 22, 2023 · US
Coil component
US-11705273-B2 · Jul 18, 2023 · US
Transformer
US-11521782-B2 · Dec 6, 2022 · US
Bus bar for minimizing ac loss in transformer and method of designing the same
US-2022165490-A1 · May 26, 2022 · US
Coil device
US-2021358676-A1 · Nov 18, 2021 · US
Coil device
US-2021280355-A1 · Sep 9, 2021 · US
Transformer
US-2021098175-A1 · Apr 1, 2021 · US
Coil component
US-2020105464-A1 · Apr 2, 2020 · US
Inductor component and method of manufacturing same
US-10490338-B2 · Nov 26, 2019 · US
Common mode choke coil
US-10395820-B2 · Aug 27, 2019 · US
Circulating-current reducing circuit and transformer unit
US-10312016-B2 · Jun 4, 2019 · US
Inductor component and method of manufacturing same
US-2019148058-A1 · May 16, 2019 · US
Common mode choke coil
US-2019148059-A1 · May 16, 2019 · US
Inductor component and method of manufacturing same
US-10229781-B2 · Mar 12, 2019 · US
Common mode choke coil
US-10210991-B2 · Feb 19, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01F27/341?
- CPC H01F27/341 is the Cooperative Patent Classification code for “Preventing or reducing no-load losses or reactive currents.”
- How many patents are filed under CPC H01F27/341 (Preventing or reducing no-load losses or reactive currents)?
- Our database includes 29 publications tagged with this CPC code.
- Is patent activity under CPC H01F27/341 growing?
- Publication counts under this code: 1 in 2024 vs 3 in 2025 (latest complete years).