Channels characterised by the type of signal

Channels characterised by the type of signal · 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 codeH04L5/02
Official titleChannels characterised by the type of signal
Display labelChannels characterised by the type of signal
Total patents308

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
201513
201616
201714
201819
201936
202042
202145
202238
202334
202428
202521
20262

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 H04L5/02?
CPC H04L5/02 is the Cooperative Patent Classification code for “Channels characterised by the type of signal.”
How many patents are filed under CPC H04L5/02 (Channels characterised by the type of signal)?
Our database includes 308 publications tagged with this CPC code.
Is patent activity under CPC H04L5/02 growing?
Publication counts under this code: 28 in 2024 vs 21 in 2025 (latest complete years).