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 codeC07C243/28
Official title
Display labelChemistry & Metallurgy (mapped technology topic)
Total patents81

Filing trend

Year-over-year patent counts classified under this CPC code.

Filing activity over the last five years is stable.

Patents filed per year
YearPatents
20156
20167
20179
20187
201912
20207
20217
20226
20237
20244
20256
20263

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 C07C243/28?
CPC C07C243/28 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
How many patents are filed under CPC C07C243/28 (Chemistry & Metallurgy)?
Our database includes 81 publications tagged with this CPC code.
Is patent activity under CPC C07C243/28 growing?
Publication counts under this code: 4 in 2024 vs 6 in 2025 (latest complete years).