Boiling liquids as heat transfer materials

Boiling liquids as heat transfer materials · 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 codeC09K5/048
Official title{Boiling liquids as heat transfer materials}
Display labelBoiling liquids as heat transfer materials
Total patents124

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
20156
20163
201710
20187
201910
202019
202112
202219
202317
202410
20258
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 C09K5/048?
CPC C09K5/048 is the Cooperative Patent Classification code for “Boiling liquids as heat transfer materials.”
How many patents are filed under CPC C09K5/048 (Boiling liquids as heat transfer materials)?
Our database includes 124 publications tagged with this CPC code.
Is patent activity under CPC C09K5/048 growing?
Publication counts under this code: 10 in 2024 vs 8 in 2025 (latest complete years).