Tunable waveguide attenuator and measurement setup
US-2026088482-A1 · Mar 26, 2026 · US
Waveguide attenuators (H01P1/23 takes precedence)
Waveguide attenuators (H01P1/23 takes precedence) · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01P1/222 |
| Official title | {Waveguide attenuators (H01P1/23 takes precedence)} |
| Display label | Waveguide attenuators (H01P1/23 takes precedence) |
| Total patents | 55 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 4 |
| 2017 | 4 |
| 2018 | 7 |
| 2019 | 8 |
| 2020 | 5 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 5 |
| 2024 | 3 |
| 2025 | 6 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electromagnetic wave attenuator and electronic device
US-12476341-B2 · Nov 18, 2025 · US
Semiconductor system with waveguide assembly with RF signal impedance controllable by applied electromagnetic radiation
US-12426383-B2 · Sep 23, 2025 · US
Waveguide module comprising a waveguide on a metal jig, where the metal jig includes a trench structure with a radio wave absorber disposed therein
US-12401105-B2 · Aug 26, 2025 · US
Semiconductor system with waveguide assembly with rf signal impedance controllable by applied electromagnetic radiation
US-2025228015-A1 · Jul 10, 2025 · US
Waveguide slide screw tuner and method
US-12347916-B1 · Jul 1, 2025 · US
Waveguide based submillimmeter-wave and terahertz variable attenuator
US-12191552-B2 · Jan 7, 2025 · US
Reduced Kapitza resistance microwave filter for cryogenic environments
US-12142804-B2 · Nov 12, 2024 · US
Reduced Kapitza Resistance Microwave Filter for Cryogenic Environments
US-2024204386-A1 · Jun 20, 2024 · US
SEMICONDUCTOR SYSTEM WITH WAVEGUIDE ASSEMBLY WITH RF SIGNAL IMPEDANCE CONTROLLABLE BY APPLIED, etc.
US-2024145612-A1 · May 2, 2024 · US
Waveguide module for improving insertion loss and return loss
US-2023327307-A1 · Oct 12, 2023 · US
Reduced kapitza resistance microwave filter for cryogenic environments
US-11757169-B2 · Sep 12, 2023 · US
Reduced kapitza resistance microwave filter for cryogenic environments
US-2023198115-A1 · Jun 22, 2023 · US
Electromagnetic wave attenuator and electronic device
US-2023145220-A1 · May 11, 2023 · US
Reduced Kapitza resistance microwave filter for cryogenic environments
US-11552380-B2 · Jan 10, 2023 · US
Waveguide based submillimmeter-wave and terahertz variable attenuator
US-2022407200-A1 · Dec 22, 2022 · US
Peel-and-adhere photonic crystal
US-11372134-B2 · Jun 28, 2022 · US
Substrate integrated waveguide signal level control element and signal processing circuitry
US-2022190457-A1 · Jun 16, 2022 · US
Reduced kapitza resistance microwave filter for cryogenic environments
US-2021111469-A1 · Apr 15, 2021 · US
PCB integrated waveguide terminations and load
US-10938083-B2 · Mar 2, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01P1/222?
- CPC H01P1/222 is the Cooperative Patent Classification code for “Waveguide attenuators (H01P1/23 takes precedence).”
- How many patents are filed under CPC H01P1/222 (Waveguide attenuators (H01P1/23 takes precedence))?
- Our database includes 55 publications tagged with this CPC code.
- Is patent activity under CPC H01P1/222 growing?
- Publication counts under this code: 3 in 2024 vs 6 in 2025 (latest complete years).