Chemistry & Metallurgy

Chemistry & Metallurgy · 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 codeC23C2/02
Official title
Display labelChemistry & Metallurgy (mapped technology topic)
Total patents1,495

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
201590
201685
2017110
2018127
2019134
2020138
2021132
2022146
2023151
2024175
2025167
202640

Representative patents

Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.

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Frequently asked questions

Answers are generated from the same data shown on this page.

What is CPC C23C2/02?
CPC C23C2/02 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
How many patents are filed under CPC C23C2/02 (Chemistry & Metallurgy)?
Our database includes 1,495 publications tagged with this CPC code.
Is patent activity under CPC C23C2/02 growing?
Publication counts under this code: 175 in 2024 vs 167 in 2025 (latest complete years).
C23C2/02 | PatentsDB