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 codeC07D403/06
Official title
Display labelChemistry & Metallurgy (mapped technology topic)
Total patents2,293

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
2015247
2016260
2017263
2018225
2019277
2020224
2021158
2022158
2023176
2024153
2025123
202629

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 C07D403/06?
CPC C07D403/06 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
How many patents are filed under CPC C07D403/06 (Chemistry & Metallurgy)?
Our database includes 2,293 publications tagged with this CPC code.
Is patent activity under CPC C07D403/06 growing?
Publication counts under this code: 153 in 2024 vs 123 in 2025 (latest complete years).