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US-2017310149-A1 · Oct 26, 2017 · US
Cooling by heat conduction through solid or powdered fillings
Cooling by heat conduction through solid or powdered fillings · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01F27/22 |
| Official title | Cooling by heat conduction through solid or powdered fillings |
| Display label | Cooling by heat conduction through solid or powdered fillings |
| Total patents | 639 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 25 |
| 2016 | 29 |
| 2017 | 40 |
| 2018 | 56 |
| 2019 | 58 |
| 2020 | 78 |
| 2021 | 64 |
| 2022 | 69 |
| 2023 | 81 |
| 2024 | 64 |
| 2025 | 59 |
| 2026 | 16 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Enclosure for an optical device
US-9785812-B2 · Oct 10, 2017 · US
Manufacturing method of a reactor
US-9679694-B2 · Jun 13, 2017 · US
Heat transfer in magnetic assemblies
US-2017076862-A1 · Mar 16, 2017 · US
Magnetic device
US-9552918-B2 · Jan 24, 2017 · US
Coil device and apparatus including the same
US-2017004921-A1 · Jan 5, 2017 · US
Cooling device of power transformer
US-2016372249-A1 · Dec 22, 2016 · US
Transformer and Power Converter Using the Same
US-2016372250-A1 · Dec 22, 2016 · US
Power component device
US-9521781-B2 · Dec 13, 2016 · US
Power receiving unit and power supply system having the same
US-2016347188-A1 · Dec 1, 2016 · US
Method of manufacturing an inductor coil
US-9496085-B2 · Nov 15, 2016 · US
Coil component, method for manufacturing the same, and coil electronic component
US-9490059-B2 · Nov 8, 2016 · US
Magnetic component with core grooves for improved heat transfer
US-9490058-B1 · Nov 8, 2016 · US
Winding component
US-2016307684-A1 · Oct 20, 2016 · US
Reactor provided with a cooler
US-9466415-B2 · Oct 11, 2016 · US
Winding component attachment structure and power conversion device provided with said attachment structure
US-2016260538-A1 · Sep 8, 2016 · US
Coil component
US-2016254086-A1 · Sep 1, 2016 · US
Cooling method for planar electrical power transformer
US-2016254085-A1 · Sep 1, 2016 · US
Inductor and method of manufacturing the same
US-9431166-B2 · Aug 30, 2016 · US
Communication module
US-2016248278-A1 · Aug 25, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01F27/22?
- CPC H01F27/22 is the Cooperative Patent Classification code for “Cooling by heat conduction through solid or powdered fillings.”
- How many patents are filed under CPC H01F27/22 (Cooling by heat conduction through solid or powdered fillings)?
- Our database includes 639 publications tagged with this CPC code.
- Is patent activity under CPC H01F27/22 growing?
- Publication counts under this code: 64 in 2024 vs 59 in 2025 (latest complete years).