Electricity

Electricity · 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 codeH01L31/044
Official title
Display labelElectricity (mapped technology topic)
Total patents127

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
20154
201610
201714
201819
201912
202019
202111
20228
202310
202413
20257

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 H01L31/044?
CPC H01L31/044 is the Cooperative Patent Classification code for “Electricity.”
How many patents are filed under CPC H01L31/044 (Electricity)?
Our database includes 127 publications tagged with this CPC code.
Is patent activity under CPC H01L31/044 growing?
Publication counts under this code: 13 in 2024 vs 7 in 2025 (latest complete years).