Fast Frequency Tracking Control for Radiofrequency Power Amplifiers with Rapidly Changing Plasma Loads
US-2025218726-A1 · Jul 3, 2025 · US
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by the use of resonant circuits
by the use of resonant circuits · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H03K5/145 |
| Official title | by the use of resonant circuits |
| Display label | by the use of resonant circuits |
| Total patents | 13 |
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 | 2 |
| 2016 | 2 |
| 2017 | 4 |
| 2018 | 1 |
| 2019 | 1 |
| 2022 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Microelectromechanical tunable delay line circuit
US-11381230-B2 · Jul 5, 2022 · US
Microelectromechanical Tunable Delay Line Circuit
US-2022077848-A1 · Mar 10, 2022 · US
Series-resonance oscillator
US-10505525-B2 · Dec 10, 2019 · US
Signal generator using multi-sampling and edge combining and associated signal generating method
US-10141921-B2 · Nov 27, 2018 · US
Series-resonance oscillator
US-2017338808-A1 · Nov 23, 2017 · US
Series-resonance oscillator
US-9755627-B2 · Sep 5, 2017 · US
Signal generator using multi-sampling and edge combining and associated signal generating method
US-2017207779-A1 · Jul 20, 2017 · US
Electronic circuits using coupled multi-inductors
US-9571034-B2 · Feb 14, 2017 · US
Electronic Circuits Using Coupled Multi-Inductors
US-2016241191-A1 · Aug 18, 2016 · US
Electronic circuits using coupled multi-inductors
US-9275784-B2 · Mar 1, 2016 · US
Series-resonance oscillator
US-2015381157-A1 · Dec 31, 2015 · US
Variable impedance driver for resonant clock networks
US-2015002204-A1 · Jan 1, 2015 · US