with speech synthesis

with speech synthesis · 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 codeH04M1/645
Official title{with speech synthesis}
Display labelwith speech synthesis
Total patents28

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
20156
20164
20178
20186
20191
20211
20231
20261

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 H04M1/645?
CPC H04M1/645 is the Cooperative Patent Classification code for “with speech synthesis.”
How many patents are filed under CPC H04M1/645 (with speech synthesis)?
Our database includes 28 publications tagged with this CPC code.
Is patent activity under CPC H04M1/645 growing?
Publication counts under this code: 1 in 2021 vs 1 in 2023 (latest complete years).