involving heat exchange by flowing fluids

involving heat exchange by flowing fluids · 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 codeH10W40/40
Official titleinvolving heat exchange by flowing fluids
Display labelinvolving heat exchange by flowing fluids
Total patents705

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
201522
201628
201739
201848
201960
202073
202172
202272
202373
202497
202591
202630

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 H10W40/40?
CPC H10W40/40 is the Cooperative Patent Classification code for “involving heat exchange by flowing fluids.”
How many patents are filed under CPC H10W40/40 (involving heat exchange by flowing fluids)?
Our database includes 705 publications tagged with this CPC code.
Is patent activity under CPC H10W40/40 growing?
Publication counts under this code: 97 in 2024 vs 91 in 2025 (latest complete years).