High frequency heating device
US-2017347410-A1 · Nov 30, 2017 · US
Circuits comprising a signal generator and power amplifier, e.g. using solid state oscillators
Circuits comprising a signal generator and power amplifier, e.g. using solid state oscillators · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H05B6/686 |
| Official title | {Circuits comprising a signal generator and power amplifier, e.g. using solid state oscillators} |
| Display label | Circuits comprising a signal generator and power amplifier, e.g. using solid state oscillators |
| Total patents | 409 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 21 |
| 2016 | 24 |
| 2017 | 22 |
| 2018 | 34 |
| 2019 | 54 |
| 2020 | 61 |
| 2021 | 51 |
| 2022 | 42 |
| 2023 | 32 |
| 2024 | 30 |
| 2025 | 28 |
| 2026 | 10 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Applying RF energy according to time variations in EM feedback
US-9804104-B2 · Oct 31, 2017 · US
Loss profile analysis
US-9807823-B2 · Oct 31, 2017 · US
Microwave heating device and method for operating a microwave heating device
US-2017265256-A1 · Sep 14, 2017 · US
Microwave heating device and method for operating a microwave heating device
US-2017265255-A1 · Sep 14, 2017 · US
Electromagnetic transmission device, power amplification device, and electromagnetic transmission system
US-9762088-B2 · Sep 12, 2017 · US
Microwave oven and related method
US-9717116-B2 · Jul 25, 2017 · US
Microwave applicator, exhaust gas purifier, heater, and chemical reactor
US-2017204757-A1 · Jul 20, 2017 · US
Semiconductor microwave oven and semiconductor microwave source thereof
US-2017188417-A1 · Jun 29, 2017 · US
Spatially controlled energy delivery
US-2017164432-A1 · Jun 8, 2017 · US
Device and method for controlling energy
US-2017164431-A1 · Jun 8, 2017 · US
Microwave heating device
US-9648670-B2 · May 9, 2017 · US
Circuit for detecting phase shift applied to an RF signal
US-9608599-B2 · Mar 28, 2017 · US
Device and method for controlling energy
US-9609692-B2 · Mar 28, 2017 · US
Microwave oven
US-2017045232-A1 · Feb 16, 2017 · US
Modal analysis
US-2016374158-A1 · Dec 22, 2016 · US
High-frequency heating device
US-9510396-B2 · Nov 29, 2016 · US
Microwave oven multiview silhouette volume calculation for mass estimation
US-2016345390-A1 · Nov 24, 2016 · US
Methods and devices for applying RF energy according to energy application schedules
US-9504095-B2 · Nov 22, 2016 · US
Method of control of a multifeed radio frequency device
US-2016330803-A1 · Nov 10, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H05B6/686?
- CPC H05B6/686 is the Cooperative Patent Classification code for “Circuits comprising a signal generator and power amplifier, e.g. using solid state oscillators.”
- How many patents are filed under CPC H05B6/686 (Circuits comprising a signal generator and power amplifier, e.g. using solid state oscillators)?
- Our database includes 409 publications tagged with this CPC code.
- Is patent activity under CPC H05B6/686 growing?
- Publication counts under this code: 30 in 2024 vs 28 in 2025 (latest complete years).