Electret
US-2025349472-A1 · Nov 13, 2025 · US
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having an organic dielectric
having an organic 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 | H01G7/021 |
| Official title | {having an organic dielectric} |
| Display label | having an organic dielectric |
| Total patents | 23 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 3 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Deep trench capacitor including a compact contact region and methods of forming the same
US-2024304700-A1 · Sep 12, 2024 · US
Deep trench capacitor including a compact contact region and methods of forming the same
US-12009405-B2 · Jun 11, 2024 · US
Electret
US-11915883-B2 · Feb 27, 2024 · US
Electretized film and electronic device
US-11723280-B2 · Aug 8, 2023 · US
Element and method for manufacturing element
US-11646677-B2 · May 9, 2023 · US
Deep trench capacitor including a compact contact region and methods of forming the same
US-2023069774-A1 · Mar 2, 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
Lift printing of multi-composition material structures
US-10629442-B2 · Apr 21, 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
Tunable shape memory capacitor and a method of preparation thereof
US-10181381-B2 · Jan 15, 2019 · US
Non-linear capacitor and energy storage device comprising thereof
US-10163575-B1 · Dec 25, 2018 · US
Electret-containing filter media
US-2018236384-A1 · Aug 23, 2018 · US
Tunable shape memory capacitor and a method of preparation thereof
US-2018053603-A1 · Feb 22, 2018 · US
Memory cell including electret and random access memory thereof
US-9627406-B1 · Apr 18, 2017 · US