What is CPC H04R25/02?

CPC H04R25/02 is the Cooperative Patent Classification code for “adapted to be supported entirely by ear.”

How many patents are filed under CPC H04R25/02 (adapted to be supported entirely by ear)?

Our database includes 366 publications tagged with this CPC code.

Publication counts under this code: 28 in 2024 vs 27 in 2025 (latest complete years).

adapted to be supported entirely by ear · Cooperative Patent Classification (CPC)

Electric circuits, power, telecommunications, and semiconductors.

Mapped technology topics for this CPC code.

CPC classification statistics
Metric	Value
CPC code	H04R25/02
Official title	adapted to be supported entirely by ear
Display label	adapted to be supported entirely by ear
Total patents	366

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

Filing activity over the last five years is declining.

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

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

What is CPC H04R25/02?: CPC H04R25/02 is the Cooperative Patent Classification code for “adapted to be supported entirely by ear.”
How many patents are filed under CPC H04R25/02 (adapted to be supported entirely by ear)?: Our database includes 366 publications tagged with this CPC code.
Is patent activity under CPC H04R25/02 growing?: Publication counts under this code: 28 in 2024 vs 27 in 2025 (latest complete years).