Heat exchange, direct or indirect

Heat exchange, direct or indirect · Cooperative Patent Classification (CPC)

Chemical and metallurgical processes, compounds, and materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeC10L2290/06
Official titleHeat exchange, direct or indirect
Display labelHeat exchange, direct or indirect
Total patents745

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
201554
201697
201781
201881
201988
202059
202166
202258
202351
202448
202550
202612

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 C10L2290/06?
CPC C10L2290/06 is the Cooperative Patent Classification code for “Heat exchange, direct or indirect.”
How many patents are filed under CPC C10L2290/06 (Heat exchange, direct or indirect)?
Our database includes 745 publications tagged with this CPC code.
Is patent activity under CPC C10L2290/06 growing?
Publication counts under this code: 48 in 2024 vs 50 in 2025 (latest complete years).