What is CPC F04D25/12?

CPC F04D25/12 is the Cooperative Patent Classification code for “the unit being adapted for mounting in apertures.”

How many patents are filed under CPC F04D25/12 (the unit being adapted for mounting in apertures)?

Our database includes 94 publications tagged with this CPC code.

Publication counts under this code: 5 in 2024 vs 6 in 2025 (latest complete years).

the unit being adapted for mounting in apertures · Cooperative Patent Classification (CPC)

Engines, pumps, lighting, heating, and mechanical systems.

Mapped technology topics for this CPC code.

CPC classification statistics
Metric	Value
CPC code	F04D25/12
Official title	the unit being adapted for mounting in apertures
Display label	the unit being adapted for mounting in apertures
Total patents	94

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

Filing activity over the last five years is declining.

Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.

Answers are generated from the same data shown on this page.

What is CPC F04D25/12?: CPC F04D25/12 is the Cooperative Patent Classification code for “the unit being adapted for mounting in apertures.”
How many patents are filed under CPC F04D25/12 (the unit being adapted for mounting in apertures)?: Our database includes 94 publications tagged with this CPC code.
Is patent activity under CPC F04D25/12 growing?: Publication counts under this code: 5 in 2024 vs 6 in 2025 (latest complete years).