Control circuit and method for controlling a piezoelectric transformer
US-11362259-B2 · Jun 14, 2022 · US
Electricity
Electricity · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01L41/044 |
| Official title | — |
| Display label | Electricity (mapped technology topic) |
| Total patents | 63 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 4 |
| 2017 | 3 |
| 2018 | 6 |
| 2019 | 12 |
| 2020 | 17 |
| 2021 | 11 |
| 2022 | 6 |
| 2023 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Driver circuitry for piezoelectric transducers
US-2022123196-A1 · Apr 21, 2022 · US
Vibrating element with conductive frames
US-11309482-B2 · Apr 19, 2022 · US
Piezoelectric transformer
US-11227989-B2 · Jan 18, 2022 · US
Piezoelectric cross-sectional Lamé mode transformer
US-11158783-B2 · Oct 26, 2021 · US
Process for Producing Ozone and Apparatus for Ozone Generation
US-2021329770-A1 · Oct 21, 2021 · US
Device for Producing a Non-Thermal Atmospheric Pressure Plasma and Active Space Comprising Such a Device
US-2021274628-A1 · Sep 2, 2021 · US
Piezoelectric vibration device
US-11094874-B2 · Aug 17, 2021 · US
Apparatus and method for generating a non-thermal atmospheric pressure plasma
US-11076475-B2 · Jul 27, 2021 · US
Process for producing ozone and apparatus for ozone generation
US-11076474-B2 · Jul 27, 2021 · US
Device for producing a non-thermal atmospheric pressure plasma and active space comprising such a device
US-11071193-B2 · Jul 20, 2021 · US
Piezoelectric device, piezoelectric transformer, and method of manufacturing piezoelectric device
US-11018292-B2 · May 25, 2021 · US
Output filter for power train
US-2021135086-A1 · May 6, 2021 · US
Device for generating a non-thermal atmospheric pressure plasma
US-10966309-B2 · Mar 30, 2021 · US
Plasma generator
US-10904995-B2 · Jan 26, 2021 · US
Device for Producing a Non-Thermal Atmospheric Pressure Plasma and Method for Operating a Piezoelectric Transformer
US-2020411745-A1 · Dec 31, 2020 · US
Device for generating an atmospheric-pressure plasma
US-10856399-B2 · Dec 1, 2020 · US
Device for producing a non-thermal atmospheric-pressure plasma and method for the frequency control of a piezoelectric transformer
US-10772182-B2 · Sep 8, 2020 · US
Printed circuit board mounting piezoelectric transformer
US-2020257234-A1 · Aug 13, 2020 · US
Apparatus and Method for Generating a Non-Thermal Atmospheric Pressure Plasma
US-2020187343-A1 · Jun 11, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01L41/044?
- CPC H01L41/044 is the Cooperative Patent Classification code for “Electricity.”
- How many patents are filed under CPC H01L41/044 (Electricity)?
- Our database includes 63 publications tagged with this CPC code.
- Is patent activity under CPC H01L41/044 growing?
- Publication counts under this code: 6 in 2022 vs 1 in 2023 (latest complete years).