with both heat and humidity transfer between supplied and exhausted air

with both heat and humidity transfer between supplied and exhausted air · Cooperative Patent Classification (CPC)

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

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeF24F3/147
Official titlewith both heat and humidity transfer between supplied and exhausted air
Display labelwith both heat and humidity transfer between supplied and exhausted air
Total patents175

Filing trend

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

Filing activity over the last five years is declining.

Patents filed per year
YearPatents
201512
201613
201720
201811
201920
202013
202122
202216
202317
202416
202513
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 F24F3/147?
CPC F24F3/147 is the Cooperative Patent Classification code for “with both heat and humidity transfer between supplied and exhausted air.”
How many patents are filed under CPC F24F3/147 (with both heat and humidity transfer between supplied and exhausted air)?
Our database includes 175 publications tagged with this CPC code.
Is patent activity under CPC F24F3/147 growing?
Publication counts under this code: 16 in 2024 vs 13 in 2025 (latest complete years).