by increasing duration; by decreasing duration

by increasing duration; by decreasing duration · 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 codeH03K5/04
Official titleby increasing duration; by decreasing duration
Display labelby increasing duration; by decreasing duration
Total patents348

Filing trend

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

Filing activity over the last five years is stable.

Patents filed per year
YearPatents
201523
201636
201738
201838
201940
202027
202126
202226
202331
202430
202526
20267

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 H03K5/04?
CPC H03K5/04 is the Cooperative Patent Classification code for “by increasing duration; by decreasing duration.”
How many patents are filed under CPC H03K5/04 (by increasing duration; by decreasing duration)?
Our database includes 348 publications tagged with this CPC code.
Is patent activity under CPC H03K5/04 growing?
Publication counts under this code: 30 in 2024 vs 26 in 2025 (latest complete years).