Details of transformers or inductances, in general

Details of transformers or inductances, in general · 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 codeH01F27/00
Official titleDetails of transformers or inductances, in general
Display labelDetails of transformers or inductances, in general
Total patents353

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
201645
201731
201826
201935
202021
202125
202221
202327
202445
202544
202613

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 H01F27/00?
CPC H01F27/00 is the Cooperative Patent Classification code for “Details of transformers or inductances, in general.”
How many patents are filed under CPC H01F27/00 (Details of transformers or inductances, in general)?
Our database includes 353 publications tagged with this CPC code.
Is patent activity under CPC H01F27/00 growing?
Publication counts under this code: 45 in 2024 vs 44 in 2025 (latest complete years).