by evaporation

by evaporation · 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 codeC23F4/02
Official titleby evaporation
Display labelby evaporation
Total patents68

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
20156
20163
20171
20183
201910
202011
20213
202212
20239
20246
20254

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 C23F4/02?
CPC C23F4/02 is the Cooperative Patent Classification code for “by evaporation.”
How many patents are filed under CPC C23F4/02 (by evaporation)?
Our database includes 68 publications tagged with this CPC code.
Is patent activity under CPC C23F4/02 growing?
Publication counts under this code: 6 in 2024 vs 4 in 2025 (latest complete years).