Adjustable leakage inductance transformer
US-11489449-B2 · Nov 1, 2022 · US
Magnetic shunt paths
Magnetic shunt paths · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01F3/12 |
| Official title | Magnetic shunt paths |
| Display label | Magnetic shunt paths |
| Total patents | 88 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 3 |
| 2017 | 5 |
| 2018 | 8 |
| 2019 | 9 |
| 2020 | 9 |
| 2021 | 15 |
| 2022 | 11 |
| 2023 | 9 |
| 2024 | 6 |
| 2025 | 9 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Coil component
US-11424070-B2 · Aug 23, 2022 · US
Transformer and bidirectional isolated resonant converter
US-2022181986-A1 · Jun 9, 2022 · US
Compound line filter
US-11328864-B2 · May 10, 2022 · US
Transformer With Integral Inductor
US-2022115180-A1 · Apr 14, 2022 · US
Inductively balanced power supply circuit and method of manufacture
US-11259413-B2 · Feb 22, 2022 · US
Current transformer of air circuit breaker
US-2022044869-A1 · Feb 10, 2022 · US
Core For Inductive Element, And Inductive Element
US-2021383957-A1 · Dec 9, 2021 · US
Magnetic core component and gap control method thereof
US-11183323-B2 · Nov 23, 2021 · US
Magnetic assembly and power supply apparatus
US-2021358673-A1 · Nov 18, 2021 · US
Leakage transformer
US-2021287847-A1 · Sep 16, 2021 · US
Zero-sequence blocking transformer
US-2021280367-A1 · Sep 9, 2021 · US
Multilayer magnetic circuit assembly
US-2021246557-A1 · Aug 12, 2021 · US
Inverter with internal/external ferromagnetic cores
US-11025045-B2 · Jun 1, 2021 · US
Multipole elastomeric magnet with magnetic-field shunt
US-11024449-B2 · Jun 1, 2021 · US
Transformer and resonant circuit having same
US-10984945-B2 · Apr 20, 2021 · US
Transformer and LLC resonant converter having the same
US-10958182-B2 · Mar 23, 2021 · US
Common-mode/differential-mode throttle for an electrically driveable motor vehicle
US-2021082609-A1 · Mar 18, 2021 · US
Transformer core and transformer
US-2021065969-A1 · Mar 4, 2021 · US
Ignition coil
US-2021057148-A1 · Feb 25, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01F3/12?
- CPC H01F3/12 is the Cooperative Patent Classification code for “Magnetic shunt paths.”
- How many patents are filed under CPC H01F3/12 (Magnetic shunt paths)?
- Our database includes 88 publications tagged with this CPC code.
- Is patent activity under CPC H01F3/12 growing?
- Publication counts under this code: 6 in 2024 vs 9 in 2025 (latest complete years).