using carrier waves

using carrier waves · 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 codeH04H20/77
Official titleusing carrier waves
Display labelusing carrier waves
Total patents34

Filing trend

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

Filing activity over the last five years is rapidly declining.

Patents filed per year
YearPatents
20157
20165
20173
20186
20197
20203
20212
20231

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 H04H20/77?
CPC H04H20/77 is the Cooperative Patent Classification code for “using carrier waves.”
How many patents are filed under CPC H04H20/77 (using carrier waves)?
Our database includes 34 publications tagged with this CPC code.
Is patent activity under CPC H04H20/77 growing?
Publication counts under this code: 2 in 2021 vs 1 in 2023 (latest complete years).