Power-efficient microwave plasma jet based on evanescent-mode cavity technology
US-12224474-B2 · Feb 11, 2025 · US
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Evanescent mode filters
Evanescent mode filters · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01P1/219 |
| Official title | Evanescent mode filters |
| Display label | Evanescent mode filters |
| Total patents | 18 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 2 |
| 2020 | 2 |
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Millimeter-wave resonator and associated methods
US-11682819-B2 · Jun 20, 2023 · US
Power-Efficient Microwave Plasma Jet Based on Evanescent-Mode Cavity Technology
US-2023178868-A1 · Jun 8, 2023 · US
Microwave or millimeter wave passive components or devices
US-2023109939-A1 · Apr 13, 2023 · US
Tunable microwave system
US-11335985-B2 · May 17, 2022 · US
Millimeter-wave resonator and associated methods
US-2022140463-A1 · May 5, 2022 · US
Tunable microwave system
US-2021167477-A1 · Jun 3, 2021 · US
Methods and devices for real-time monitoring of tunable filters
US-10615892-B2 · Apr 7, 2020 · US
Methods and devices for real-time monitoring of tunable filters
US-2020076516-A1 · Mar 5, 2020 · US
Methods and devices for real-time monitoring of tunable filters
US-10122478-B2 · Nov 6, 2018 · US
Tunable evanescent-mode cavity filter with closed loop control
US-9935349-B2 · Apr 3, 2018 · US
Methods and devices for real-time monitoring of tunable filters
US-2017201335-A1 · Jul 13, 2017 · US
Radiofrequency filter with dielectric element
US-9666924-B2 · May 30, 2017 · US
E-plane probe with stepped surface profile for high-frequency
US-9553057-B1 · Jan 24, 2017 · US
System and method for linear non-reciprocal communication and isolation
US-2016209594-A1 · Jul 21, 2016 · US
Noise suppression structure
US-9225049-B2 · Dec 29, 2015 · US
Tunable evanescent-mode cavity filter
US-9024709-B2 · May 5, 2015 · US
Tunable MEMS resonators
US-8981875-B2 · Mar 17, 2015 · US