Half-bridge at primary side of an isolation transformer

Half-bridge at primary side of an isolation transformer · 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 codeH02M3/33571
Official title{Half-bridge at primary side of an isolation transformer}
Display labelHalf-bridge at primary side of an isolation transformer
Total patents1,858

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
201567
201678
201794
2018113
2019132
2020180
2021161
2022188
2023239
2024245
2025291
202670

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 H02M3/33571?
CPC H02M3/33571 is the Cooperative Patent Classification code for “Half-bridge at primary side of an isolation transformer.”
How many patents are filed under CPC H02M3/33571 (Half-bridge at primary side of an isolation transformer)?
Our database includes 1,858 publications tagged with this CPC code.
Is patent activity under CPC H02M3/33571 growing?
Publication counts under this code: 245 in 2024 vs 291 in 2025 (latest complete years).