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 codeC01B33/02
Official title
Display labelChemistry & Metallurgy (mapped technology topic)
Total patents632

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
201538
201642
201751
201844
201956
202057
202162
202266
202366
202474
202565
202611

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 C01B33/02?
CPC C01B33/02 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
How many patents are filed under CPC C01B33/02 (Chemistry & Metallurgy)?
Our database includes 632 publications tagged with this CPC code.
Is patent activity under CPC C01B33/02 growing?
Publication counts under this code: 74 in 2024 vs 65 in 2025 (latest complete years).