Microwave generator with power factor correction function and control method thereof
US-10476433-B2 · Nov 12, 2019 · US
having sawtooth shape
having sawtooth shape · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H03K4/08 |
| Official title | having sawtooth shape |
| Display label | having sawtooth shape |
| Total patents | 165 |
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 | 10 |
| 2016 | 14 |
| 2017 | 17 |
| 2018 | 15 |
| 2019 | 25 |
| 2020 | 22 |
| 2021 | 16 |
| 2022 | 15 |
| 2023 | 14 |
| 2024 | 11 |
| 2025 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Scan driving device, optical scan control apparatus, and driving waveform generation method
US-2019324264-A1 · Oct 24, 2019 · US
Supply voltage generating circuit and associated integrated circuit
US-10348215-B2 · Jul 9, 2019 · US
Switch-mode power supply control
US-10298109-B2 · May 21, 2019 · US
Relaxation oscillator and wireless device including relaxation oscillator
US-2018351538-A1 · Dec 6, 2018 · US
Power supply control and use of generated ramp signal to control activation
US-2018351452-A1 · Dec 6, 2018 · US
PWM Modulator
US-2018323774-A1 · Nov 8, 2018 · US
Digital-to-analog converter
US-2018323793-A1 · Nov 8, 2018 · US
Switch-mode power supply control
US-2018323695-A1 · Nov 8, 2018 · US
Power amplifying apparatus with spurious signal reduction function
US-2018287595-A1 · Oct 4, 2018 · US
System, method, and apparatus for generating a ramp signal with a changing slope
US-10043844-B2 · Aug 7, 2018 · US
PWM modulator
US-10027315-B2 · Jul 17, 2018 · US
Clock dividing frequency circuit, control circuit and power management integrated circuit
US-2018159539-A1 · Jun 7, 2018 · US
Method and system for generating a ramping signal
US-2018131888-A1 · May 10, 2018 · US
Slope wave generation circuit and digital-to-analog conversion circuit thereof, fingerprint identification system
US-9953203-B2 · Apr 24, 2018 · US
Method and system for generating a ramping signal
US-9894307-B2 · Feb 13, 2018 · US
Ramp signal generator, and CMOS image sensor using the same
US-9894309-B2 · Feb 13, 2018 · US
Comparison circuit including input sampling capacitor and image sensor including the same
US-2018033722-A1 · Feb 1, 2018 · US
Microwave generator with power factor correction function and control method thereof
US-2018013385-A1 · Jan 11, 2018 · US
Multiphase power supply having single comparator
US-2017353160-A1 · Dec 7, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H03K4/08?
- CPC H03K4/08 is the Cooperative Patent Classification code for “having sawtooth shape.”
- How many patents are filed under CPC H03K4/08 (having sawtooth shape)?
- Our database includes 165 publications tagged with this CPC code.
- Is patent activity under CPC H03K4/08 growing?
- Publication counts under this code: 11 in 2024 vs 6 in 2025 (latest complete years).