Scanning an electric parameter, e.g. voltage amplitude or frequency

Scanning an electric parameter, e.g. voltage amplitude or frequency · 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 codeH01J49/429
Official title{Scanning an electric parameter, e.g. voltage amplitude or frequency}
Display labelScanning an electric parameter, e.g. voltage amplitude or frequency
Total patents126

Filing trend

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

Filing activity over the last five years is declining.

Patents filed per year
YearPatents
20158
201610
201713
20186
201912
202020
202117
202210
20235
202414
202511

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 H01J49/429?
CPC H01J49/429 is the Cooperative Patent Classification code for “Scanning an electric parameter, e.g. voltage amplitude or frequency.”
How many patents are filed under CPC H01J49/429 (Scanning an electric parameter, e.g. voltage amplitude or frequency)?
Our database includes 126 publications tagged with this CPC code.
Is patent activity under CPC H01J49/429 growing?
Publication counts under this code: 14 in 2024 vs 11 in 2025 (latest complete years).