Circuit
US-12549140-B2 · Feb 10, 2026 · US
with junction-FET's
with junction-FET's · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H03F1/226 |
| Official title | {with junction-FET's} |
| Display label | with junction-FET's |
| Total patents | 53 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 7 |
| 2017 | 2 |
| 2018 | 5 |
| 2019 | 4 |
| 2020 | 7 |
| 2021 | 3 |
| 2022 | 4 |
| 2023 | 7 |
| 2024 | 3 |
| 2025 | 3 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Amplifier and method for controlling common mode voltage of the same
US-12537490-B2 · Jan 27, 2026 · US
Power amplifier and manufacturing method thereof
US-2026012145-A1 · Jan 8, 2026 · US
Composite cascode power amplifiers for envelope tracking applications
US-2025158583-A1 · May 15, 2025 · US
Composite cascode power amplifiers for envelope tracking applications
US-12231099-B2 · Feb 18, 2025 · US
Drain switched split amplifier with capacitor switching for noise figure and isolation improvement in split mode
US-12218637-B2 · Feb 4, 2025 · US
DC coupled amplifier having pre-driver and bias control
US-12113483-B2 · Oct 8, 2024 · US
Drain Switched Split Amplifier with Capacitor Switching for Noise Figure and Isolation Improvement in Split Mode
US-2024186958-A1 · Jun 6, 2024 · US
Composite cascode power amplifiers for envelope tracking applications
US-2024088849-A1 · Mar 14, 2024 · US
Composite cascode power amplifiers for envelope tracking applications
US-11855595-B2 · Dec 26, 2023 · US
Drain switched split amplifier with capacitor switching for noise figure and isolation improvement in split mode
US-11848648-B2 · Dec 19, 2023 · US
Potential measuring device
US-2023333040-A1 · Oct 19, 2023 · US
Amplifier and method for controlling common mode voltage of the same
US-2023246613-A1 · Aug 3, 2023 · US
Low noise amplifier and apparatus including the same
US-2023223905-A1 · Jul 13, 2023 · US
Circuit
US-2023170853-A1 · Jun 1, 2023 · US
Dc coupled amplifier having pre-driver and bias control
US-2023092922-A1 · Mar 23, 2023 · US
DC coupled amplifier having pre-driver and bias control
US-11515841-B2 · Nov 29, 2022 · US
RF amplifier
US-11424721-B2 · Aug 23, 2022 · US
Drain Switched Split Amplifier with Capacitor Switching for Noise Figure and Isolation Improvement in Split Mode
US-2022209719-A1 · Jun 30, 2022 · US
Drain switched split amplifier with capacitor switching for noise figure and isolation improvement in split mode
US-11239801-B2 · Feb 1, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H03F1/226?
- CPC H03F1/226 is the Cooperative Patent Classification code for “with junction-FET's.”
- How many patents are filed under CPC H03F1/226 (with junction-FET's)?
- Our database includes 53 publications tagged with this CPC code.
- Is patent activity under CPC H03F1/226 growing?
- Publication counts under this code: 3 in 2024 vs 3 in 2025 (latest complete years).