Soft sensor
US-2025362186-A1 · Nov 27, 2025 · US
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having a heterogeneous dielectric
having a heterogeneous dielectric · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01G7/028 |
| Official title | {having a heterogeneous dielectric} |
| Display label | having a heterogeneous dielectric |
| Total patents | 24 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2017 | 1 |
| 2018 | 3 |
| 2019 | 5 |
| 2020 | 3 |
| 2021 | 3 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electret
US-2025349472-A1 · Nov 13, 2025 · US
Storage device
US-2024324238-A1 · Sep 26, 2024 · US
Electret
US-11915883-B2 · Feb 27, 2024 · US
Electretized film and electronic device
US-11723280-B2 · Aug 8, 2023 · US
Electret membrane, preparation method, refrigerator body assembly and refrigeration apparatus
US-2023217965-A1 · Jul 13, 2023 · US
Energy conversion film and energy conversion element using same
US-11515810-B2 · Nov 29, 2022 · US
Electret-containing filter media
US-2022054961-A1 · Feb 24, 2022 · US
Electret-containing filter media
US-11077394-B2 · Aug 3, 2021 · US
Electret
US-2021183584-A1 · Jun 17, 2021 · US
Piezoelectric stack
US-10998488-B2 · May 4, 2021 · US
Element and electric generator
US-10636958-B2 · Apr 28, 2020 · US
Electretized film and electronic device
US-2020061669-A1 · Feb 27, 2020 · US
Electret-treated sheet and filter
US-2020009489-A1 · Jan 9, 2020 · US
Energy conversion film and energy conversion element using same
US-2019393806-A1 · Dec 26, 2019 · US
Electret element, microphone having electret element mounted therein and electret element manufacturing method
US-10511914-B2 · Dec 17, 2019 · US
Electret element, microphone having electret element mounted therein and electret element manufacturing method
US-10405103-B2 · Sep 3, 2019 · US
Tunable shape memory capacitor and a method of preparation thereof
US-10181381-B2 · Jan 15, 2019 · US
Electret Element, Microphone Having Electret Element Mounted Therein and Electret Element Manufacturing Method
US-2019014419-A1 · Jan 10, 2019 · US
Non-linear capacitor and energy storage device comprising thereof
US-10163575-B1 · Dec 25, 2018 · US