Horn antenna element
US-12519243-B2 · Jan 6, 2026 · US
using a corrugated or ridged waveguide section
using a corrugated or ridged waveguide section · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01P1/171 |
| Official title | {using a corrugated or ridged waveguide section} |
| Display label | using a corrugated or ridged waveguide section |
| Total patents | 47 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 3 |
| 2018 | 6 |
| 2019 | 9 |
| 2020 | 7 |
| 2021 | 5 |
| 2022 | 4 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Longitudinally ridged quad polarizer feed
US-12512596-B1 · Dec 30, 2025 · US
Compact mode converter waveguide
US-2025349486-A1 · Nov 13, 2025 · US
Antenna device and an automated test equipment with a ridged blind mating waveguide flange
US-2025298077-A1 · Sep 25, 2025 · US
Antenna feed for a direct radiating array antenna, radiating panel and antenna comprising several antenna feeds
US-12046791-B2 · Jul 23, 2024 · US
Apparatus and system for splitting and combining signals in the frequency domain
US-2024213642-A1 · Jun 27, 2024 · US
Horn antenna element
US-2023268657-A1 · Aug 24, 2023 · US
Dual-band polariser
US-11695191-B2 · Jul 4, 2023 · US
Cross slot polarizer
US-11594796-B2 · Feb 28, 2023 · US
Traveling wave array having longitudinally polarized elements
US-11509064-B2 · Nov 22, 2022 · US
Dual-band parabolic reflector microwave antenna systems
US-11489259-B2 · Nov 1, 2022 · US
Antenna feed for a direct radiating array antenna, radiating panel and antenna comprising several antenna feeds
US-2022190477-A1 · Jun 16, 2022 · US
Linear-to-circular polarizer antenna
US-11283142-B2 · Mar 22, 2022 · US
Linear-to-circular polarizer antenna
US-11211675-B2 · Dec 28, 2021 · US
Traveling wave array having longitudinally polarized elements
US-2021296781-A1 · Sep 23, 2021 · US
Polarization separation circuit
US-11101530-B2 · Aug 24, 2021 · US
Dual-band polariser
US-2021234281-A1 · Jul 29, 2021 · US
Antenna device and array antenna device
US-10992050-B2 · Apr 27, 2021 · US
Polarization separation circuit
US-2020381794-A1 · Dec 3, 2020 · US
Linear-to-circular polarizers using cascaded sheet impedances and cascaded waveplates
US-10840573-B2 · Nov 17, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01P1/171?
- CPC H01P1/171 is the Cooperative Patent Classification code for “using a corrugated or ridged waveguide section.”
- How many patents are filed under CPC H01P1/171 (using a corrugated or ridged waveguide section)?
- Our database includes 47 publications tagged with this CPC code.
- Is patent activity under CPC H01P1/171 growing?
- Publication counts under this code: 2 in 2024 vs 3 in 2025 (latest complete years).