Controlling the input circuit of the differential amplifier

Controlling the input circuit of the differential amplifier · 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 codeH03F3/45941
Official title{Controlling the input circuit of the differential amplifier}
Display labelControlling the input circuit of the differential amplifier
Total patents118

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
20159
201611
20179
201815
201919
202015
202116
20228
20236
20245
20253
20262

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 H03F3/45941?
CPC H03F3/45941 is the Cooperative Patent Classification code for “Controlling the input circuit of the differential amplifier.”
How many patents are filed under CPC H03F3/45941 (Controlling the input circuit of the differential amplifier)?
Our database includes 118 publications tagged with this CPC code.
Is patent activity under CPC H03F3/45941 growing?
Publication counts under this code: 5 in 2024 vs 3 in 2025 (latest complete years).