Low frequency load pull tuner using dielectric filled spiral airline
US-12519458-B1 · Jan 6, 2026 · US
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Toothed-gear drive; Worm drive
Toothed-gear drive; Worm drive · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H03J1/08 |
| Official title | Toothed-gear drive; Worm drive |
| Display label | Toothed-gear drive; Worm drive |
| Total patents | 12 |
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 | 1 |
| 2017 | 1 |
| 2019 | 3 |
| 2020 | 3 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Three-dimensional transmon qubit apparatus
US-11574229-B2 · Feb 7, 2023 · US
Slide screw tuner with adjustable pitch
US-11460530-B1 · Oct 4, 2022 · US
Three-dimensional transmon qubit apparatus
US-2021216899-A1 · Jul 15, 2021 · US
Tunable filter and tunable filtering device
US-10873118-B2 · Dec 22, 2020 · US
Slide screw tuners with offset tuning probes and method
US-10686239-B1 · Jun 16, 2020 · US
Slide screw tuners with offset tuning probes and method
US-10637122-B1 · Apr 28, 2020 · US
Tunable filter and tunable filtering device
US-2019326655-A1 · Oct 24, 2019 · US
Integrated split signal hybrid harmonic tuner
US-10187228-B1 · Jan 22, 2019 · US
Hybrid harmonic impedance tuner
US-10177429-B1 · Jan 8, 2019 · US
Waveguide bandpass filter having a ladder shape metal plate and which is tunable using a rotatable dielectric plate
US-9590285-B2 · Mar 7, 2017 · US
Bandpass filter for which bandpass frequency can be easily changed
US-2015155610-A1 · Jun 4, 2015 · US