Heat exchange systems, e.g. heat jackets or outer envelopes

Heat exchange systems, e.g. heat jackets or outer envelopes · 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 codeC12M41/18
Official title{Heat exchange systems, e.g. heat jackets or outer envelopes}
Display labelHeat exchange systems, e.g. heat jackets or outer envelopes
Total patents135

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
20157
201611
20178
20188
201912
202023
202117
202212
202313
202411
202510
20263

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 C12M41/18?
CPC C12M41/18 is the Cooperative Patent Classification code for “Heat exchange systems, e.g. heat jackets or outer envelopes.”
How many patents are filed under CPC C12M41/18 (Heat exchange systems, e.g. heat jackets or outer envelopes)?
Our database includes 135 publications tagged with this CPC code.
Is patent activity under CPC C12M41/18 growing?
Publication counts under this code: 11 in 2024 vs 10 in 2025 (latest complete years).