What is CPC F28F25/12?

CPC F28F25/12 is the Cooperative Patent Classification code for “Ducts; Guide vanes, e.g. for carrying currents to distinct zones.”

How many patents are filed under CPC F28F25/12 (Ducts; Guide vanes, e.g. for carrying currents to distinct zones)?

Our database includes 25 publications tagged with this CPC code.

Publication counts under this code: 4 in 2022 vs 2 in 2024 (latest complete years).

Ducts; Guide vanes, e.g. for carrying currents to distinct zones · 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	F28F25/12
Official title	Ducts; Guide vanes, e.g. for carrying currents to distinct zones
Display label	Ducts; Guide vanes, e.g. for carrying currents to distinct zones
Total patents	25

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

Filing activity over the last five years is stable.

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 F28F25/12?: CPC F28F25/12 is the Cooperative Patent Classification code for “Ducts; Guide vanes, e.g. for carrying currents to distinct zones.”
How many patents are filed under CPC F28F25/12 (Ducts; Guide vanes, e.g. for carrying currents to distinct zones)?: Our database includes 25 publications tagged with this CPC code.
Is patent activity under CPC F28F25/12 growing?: Publication counts under this code: 4 in 2022 vs 2 in 2024 (latest complete years).