Push-pull source follower circuit using biasing technique to program bias current and output mean voltage independently
US-2026012138-A1 · Jan 8, 2026 · US
in push-pull amplifiers
in push-pull amplifiers · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H03F1/307 |
| Official title | {in push-pull amplifiers} |
| Display label | in push-pull amplifiers |
| Total patents | 37 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 4 |
| 2017 | 6 |
| 2018 | 9 |
| 2019 | 1 |
| 2020 | 4 |
| 2021 | 3 |
| 2022 | 2 |
| 2024 | 3 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Amplifier circuit for microphone, microphone circuit and electronic device
US-2025226805-A1 · Jul 10, 2025 · US
System and method for increasing transconductance of a cmos inverter
US-2025211233-A1 · Jun 26, 2025 · US
Clipping prevention in switched mode drivers
US-2024322767-A1 · Sep 26, 2024 · US
Methods and techniques to improve stability of cascode amplifiers and enhance lineup efficiency in multi-stage power amplifiers
US-2024243709-A1 · Jul 18, 2024 · US
An amplifier arrangement with enhanced harmonic rejection
US-2024039491-A1 · Feb 1, 2024 · US
Pre-driver stage with adjustable biasing
US-11469727-B2 · Oct 11, 2022 · US
Charge pump circuit and method for voltage conversion
US-11316444-B2 · Apr 26, 2022 · US
Pre-driver stage with adjustable biasing
US-2021273619-A1 · Sep 2, 2021 · US
Configurable modal amplifier system
US-11095264-B2 · Aug 17, 2021 · US
Inverter circuit arrangement
US-2021099101-A1 · Apr 1, 2021 · US
Configurable modal amplifier system
US-2020395908-A1 · Dec 17, 2020 · US
Operational amplifier, corresponding circuit, apparatus and method
US-10734954-B2 · Aug 4, 2020 · US
Clamped output amplifier
US-10673390-B2 · Jun 2, 2020 · US
Clamped output amplifier
US-2020067464-A1 · Feb 27, 2020 · US
RF class AB cascode amplifier with linearization and steering diodes
US-10187022-B2 · Jan 22, 2019 · US
Output stage of operational amplifier and method in the operational amplifier
US-10148236-B1 · Dec 4, 2018 · US
Audio circuit
US-10110179-B2 · Oct 23, 2018 · US
Operational amplifier, corresponding circuit, apparatus and method
US-2018248522-A1 · Aug 30, 2018 · US
Current-bootstrap comparator and operational amplifier thereof
US-10038417-B2 · Jul 31, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H03F1/307?
- CPC H03F1/307 is the Cooperative Patent Classification code for “in push-pull amplifiers.”
- How many patents are filed under CPC H03F1/307 (in push-pull amplifiers)?
- Our database includes 37 publications tagged with this CPC code.
- Is patent activity under CPC H03F1/307 growing?
- Publication counts under this code: 3 in 2024 vs 2 in 2025 (latest complete years).