Fast switching and ultra-low power compact varactor driver
US-2024356509-A1 · Oct 24, 2024 · US
A switch coupled in the input circuit of an amplifier being controlled by a circuit, e.g. feedback circuitry being controlling the switch
A switch coupled in the input circuit of an amplifier being controlled by a circuit, e.g. feedback circuitry being controlling the switch · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H03F2200/249 |
| Official title | A switch coupled in the input circuit of an amplifier being controlled by a circuit, e.g. feedback circuitry being controlling the switch |
| Display label | A switch coupled in the input circuit of an amplifier being controlled by a circuit, e.g. feedback circuitry being controlling the switch |
| Total patents | 100 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 10 |
| 2017 | 11 |
| 2018 | 12 |
| 2019 | 16 |
| 2020 | 10 |
| 2021 | 6 |
| 2022 | 7 |
| 2023 | 9 |
| 2024 | 5 |
| 2025 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Low noise amplifier and semiconductor device
US-2020220503-A1 · Jul 9, 2020 · US
Circuits, devices and methods related to amplification with active gain bypass
US-2020162029-A1 · May 21, 2020 · US
Photoelectric conversion device
US-10483922-B2 · Nov 19, 2019 · US
Reconfigurable amplifier and amplification method thereof
US-10476450-B2 · Nov 12, 2019 · US
Process of using a submerged combustion melter to produce hollow glass fiber or solid glass fiber having entrained bubbles, and burners and systems to make such fibers
US-2019263712-A1 · Aug 29, 2019 · US
Drain sharing split LNA
US-10381991-B1 · Aug 13, 2019 · US
Drain Sharing Split LNA
US-2019245497-A1 · Aug 8, 2019 · US
Radio-frequency amplifier having active gain bypass circuit
US-10374555-B2 · Aug 6, 2019 · US
Amplifier device for high frequency signals
US-10361730-B2 · Jul 23, 2019 · US
Conversion circuit and detection circuit
US-10349848-B2 · Jul 16, 2019 · US
Standby Voltage Condition for Fast RF Amplifier Bias Recovery
US-2019190459-A1 · Jun 20, 2019 · US
Enhanced Reverse Isolation and Gain Using Feedback
US-2019158040-A1 · May 23, 2019 · US
LNA with programmable linearity
US-10284151-B2 · May 7, 2019 · US
Radio frequency circuit, radio-frequency front-end circuit, and communication device
US-2019081651-A1 · Mar 14, 2019 · US
Radio-frequency filter circuit, multiplexer, radio-frequency front-end circuit, and communication device
US-2019081613-A1 · Mar 14, 2019 · US
Method for improving feedback circuit performance
US-2019068212-A1 · Feb 28, 2019 · US
Reconfigurable amplifier and amplification method thereof
US-2019036497-A1 · Jan 31, 2019 · US
Standby voltage condition for fast RF amplifier bias recovery
US-10181819-B2 · Jan 15, 2019 · US
Photoelectric conversion device
US-2018241357-A1 · Aug 23, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H03F2200/249?
- CPC H03F2200/249 is the Cooperative Patent Classification code for “A switch coupled in the input circuit of an amplifier being controlled by a circuit, e.g. feedback circuitry being controlling the switch.”
- How many patents are filed under CPC H03F2200/249 (A switch coupled in the input circuit of an amplifier being controlled by a circuit, e.g. feedback circuitry being controlling the switch)?
- Our database includes 100 publications tagged with this CPC code.
- Is patent activity under CPC H03F2200/249 growing?
- Publication counts under this code: 5 in 2024 vs 6 in 2025 (latest complete years).