Electric tinnitus maskers providing an auditory perception

Electric tinnitus maskers providing an auditory perception · 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 codeH04R25/75
Official title{Electric tinnitus maskers providing an auditory perception}
Display labelElectric tinnitus maskers providing an auditory perception
Total patents222

Filing trend

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

Filing activity over the last five years is growing.

Patents filed per year
YearPatents
201520
201626
201719
201824
201921
202020
202113
202218
202325
202414
202517
20265

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 H04R25/75?
CPC H04R25/75 is the Cooperative Patent Classification code for “Electric tinnitus maskers providing an auditory perception.”
How many patents are filed under CPC H04R25/75 (Electric tinnitus maskers providing an auditory perception)?
Our database includes 222 publications tagged with this CPC code.
Is patent activity under CPC H04R25/75 growing?
Publication counts under this code: 14 in 2024 vs 17 in 2025 (latest complete years).