Annular magnetic body for noise control and member for noise control
US-12476030-B2 · Nov 18, 2025 · US
by winding the strips or ribbons around a coil
by winding the strips or ribbons around a coil · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01F41/022 |
| Official title | {by winding the strips or ribbons around a coil} |
| Display label | by winding the strips or ribbons around a coil |
| Total patents | 45 |
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 | 4 |
| 2017 | 5 |
| 2018 | 3 |
| 2019 | 3 |
| 2020 | 6 |
| 2021 | 5 |
| 2022 | 3 |
| 2023 | 6 |
| 2024 | 2 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Annular magnetic body for noise control and member for noise control
US-2025266194-A1 · Aug 21, 2025 · US
Methods, materials and structures for manufacturing a magnetically actuated exciter device using 3D printing
US-12205761-B2 · Jan 21, 2025 · US
Wound magnetic core
US-12191071-B2 · Jan 7, 2025 · US
Method for producing an electromagnet
US-2024283339-A1 · Aug 22, 2024 · US
Magnetic core with protective housing
US-2024038434-A1 · Feb 1, 2024 · US
Manufacturing Method of Wound Magnetic Core, and Wound Magnetic Core
US-2023317368-A1 · Oct 5, 2023 · US
Spiral core current transformer for energy harvesting applications
US-2023307177-A1 · Sep 28, 2023 · US
Method for manufacturing a wound magnetic core
US-11715591-B2 · Aug 1, 2023 · US
Methods, materials & structures for manufacturing a magnetically actuated exciter device using 3d printing
US-2023238177-A1 · Jul 27, 2023 · US
Spiral core current transformer for energy harvesting applications
US-11657959-B2 · May 23, 2023 · US
Electrical inductor device
US-11610718-B2 · Mar 21, 2023 · US
Inductive component and method for adjusting an inductance value
US-2022336150-A1 · Oct 20, 2022 · US
Alloy and method for producing a magnetic core
US-11450479-B2 · Sep 20, 2022 · US
Magnetic core based on a nanocrystalline magnetic alloy
US-11264156-B2 · Mar 1, 2022 · US
Composite Material for a Transformer
US-2021407732-A1 · Dec 30, 2021 · US
Manufacturing method of wound magnetic core, and wound magnetic core
US-2021304959-A1 · Sep 30, 2021 · US
Core body and reactor
US-11107618-B2 · Aug 31, 2021 · US
Electrical inductor device
US-2021090779-A1 · Mar 25, 2021 · US
In-situ wound current transformer core
US-10902997-B2 · Jan 26, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01F41/022?
- CPC H01F41/022 is the Cooperative Patent Classification code for “by winding the strips or ribbons around a coil.”
- How many patents are filed under CPC H01F41/022 (by winding the strips or ribbons around a coil)?
- Our database includes 45 publications tagged with this CPC code.
- Is patent activity under CPC H01F41/022 growing?
- Publication counts under this code: 2 in 2024 vs 4 in 2025 (latest complete years).