with particular feeding means (for circular polarisation H01Q9/0428)

with particular feeding means (for circular polarisation H01Q9/0428) · Cooperative Patent Classification (CPC)

Electric circuits, power, telecommunications, and semiconductors.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeH01Q9/045
Official title{with particular feeding means (for circular polarisation H01Q9/0428)}
Display labelwith particular feeding means (for circular polarisation H01Q9/0428)
Total patents1,629

Filing trend

Year-over-year patent counts classified under this CPC code.

Filing activity over the last five years is stable.

Patents filed per year
YearPatents
201555
201672
201769
201872
2019117
2020173
2021194
2022207
2023224
2024230
2025177
202639

Representative patents

Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.

Frequently asked questions

Answers are generated from the same data shown on this page.

What is CPC H01Q9/045?
CPC H01Q9/045 is the Cooperative Patent Classification code for “with particular feeding means (for circular polarisation H01Q9/0428).”
How many patents are filed under CPC H01Q9/045 (with particular feeding means (for circular polarisation H01Q9/0428))?
Our database includes 1,629 publications tagged with this CPC code.
Is patent activity under CPC H01Q9/045 growing?
Publication counts under this code: 230 in 2024 vs 177 in 2025 (latest complete years).