Variable Impedance Circuit
US-2024405801-A1 · Dec 5, 2024 · US
of more than one resonant circuit simultaneously, the circuits being tuned to substantially the same frequency, e.g. for single-knob tuning · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H03J3/24 |
| Official title | of more than one resonant circuit simultaneously, the circuits being tuned to substantially the same frequency, e.g. for single-knob tuning |
| Display label | of more than one resonant circuit simultaneously, the circuits being tuned to substantially the same frequency, e.g. for single-knob tuning |
| Total patents | 21 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 1 |
| 2019 | 3 |
| 2020 | 8 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 3 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2024405801-A1 · Dec 5, 2024 · US
US-12095523-B2 · Sep 17, 2024 · US
US-2024030965-A1 · Jan 25, 2024 · US
US-11728845-B2 · Aug 15, 2023 · US
US-11387685-B2 · Jul 12, 2022 · US
US-2021359720-A1 · Nov 18, 2021 · US
US-11005532-B2 · May 11, 2021 · US
US-10965331-B2 · Mar 30, 2021 · US
US-10862425-B2 · Dec 8, 2020 · US
US-2020336160-A1 · Oct 22, 2020 · US
US-2020274578-A1 · Aug 27, 2020 · US
US-2020220392-A1 · Jul 9, 2020 · US
US-10673414-B2 · Jun 2, 2020 · US
US-10641849-B2 · May 5, 2020 · US
US-10630342-B2 · Apr 21, 2020 · US
US-10622841-B2 · Apr 14, 2020 · US
US-2019245523-A1 · Aug 8, 2019 · US
US-2019207653-A1 · Jul 4, 2019 · US
US-2019058458-A1 · Feb 21, 2019 · US
US-9843306-B2 · Dec 12, 2017 · US