Amplifier circuit and composite circuit
US-12531530-B2 · Jan 20, 2026 · US
CMOS common drain output SEPP amplifiers (H03F3/3008 takes precedence)
CMOS common drain output SEPP amplifiers (H03F3/3008 takes precedence) · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H03F3/301 |
| Official title | {CMOS common drain output SEPP amplifiers (H03F3/3008 takes precedence)} |
| Display label | CMOS common drain output SEPP amplifiers (H03F3/3008 takes precedence) |
| Total patents | 57 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 7 |
| 2017 | 10 |
| 2018 | 4 |
| 2019 | 6 |
| 2020 | 7 |
| 2021 | 5 |
| 2022 | 1 |
| 2023 | 6 |
| 2024 | 2 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
High-efficiency amplifier architecture with de-gain stage
US-12395136-B2 · Aug 19, 2025 · US
Voltage ripple reduction in a power management circuit
US-2025192738-A1 · Jun 12, 2025 · US
Voltage ripple reduction in a power management circuit
US-12273081-B2 · Apr 8, 2025 · US
Output voltage glitch reduction in test systems
US-12216164-B2 · Feb 4, 2025 · US
Output Stage for High-Voltage Linear Transmitters
US-2024238841-A1 · Jul 18, 2024 · US
Output voltage glitch reduction in ate systems
US-11940496-B2 · Mar 26, 2024 · US
Voltage ripple reduction in a power management circuit
US-2023238927-A1 · Jul 27, 2023 · US
Amplifier circuit and composite circuit
US-2023238929-A1 · Jul 27, 2023 · US
Output voltage glitch reduction in test systems
US-2023176110-A1 · Jun 8, 2023 · US
Wideband power amplifier arrangement
US-11652452-B2 · May 16, 2023 · US
Output voltage glitch reduction in ate systems
US-2023114208-A1 · Apr 13, 2023 · US
High-efficiency amplifier architecture with de-gain stage
US-2023077479-A1 · Mar 16, 2023 · US
Process and temperature immunity in circuit design
US-11329650-B2 · May 10, 2022 · US
Amplifier circuit with high-order damping circuit and the high-order damping circuit
US-11196387-B2 · Dec 7, 2021 · US
Class D amplifier stereo to mono converter
US-11159132-B2 · Oct 26, 2021 · US
Signal amplifier circuit having high power supply rejection ratio and driving circuit thereof
US-11146217-B2 · Oct 12, 2021 · US
Power amplifier circuit
US-10965261-B2 · Mar 30, 2021 · US
Signal amplifier circuit having high power supply rejection ratio and driving circuit thereof
US-2021028747-A1 · Jan 28, 2021 · US
Amplifier circuit with high-order damping circuit and the high-order damping circuit
US-2020382072-A1 · Dec 3, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H03F3/301?
- CPC H03F3/301 is the Cooperative Patent Classification code for “CMOS common drain output SEPP amplifiers (H03F3/3008 takes precedence).”
- How many patents are filed under CPC H03F3/301 (CMOS common drain output SEPP amplifiers (H03F3/3008 takes precedence))?
- Our database includes 57 publications tagged with this CPC code.
- Is patent activity under CPC H03F3/301 growing?
- Publication counts under this code: 2 in 2024 vs 4 in 2025 (latest complete years).