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 codeC07C271/64
Official title
Display labelChemistry & Metallurgy (mapped technology topic)
Total patents14

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
20152
20162
20171
20191
20234
20254

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 C07C271/64?
CPC C07C271/64 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
How many patents are filed under CPC C07C271/64 (Chemistry & Metallurgy)?
Our database includes 14 publications tagged with this CPC code.
Is patent activity under CPC C07C271/64 growing?
Publication counts under this code: 4 in 2023 vs 4 in 2025 (latest complete years).
C07C271/64 | PatentsDB