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 codeC01B13/0251
Official title
Display labelChemistry & Metallurgy (mapped technology topic)
Total patents109

Filing trend

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

Filing activity over the last five years is rapidly declining.

Patents filed per year
YearPatents
201513
201612
201714
201813
201913
202022
20218
20227
20234
20242
20251

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 C01B13/0251?
CPC C01B13/0251 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
How many patents are filed under CPC C01B13/0251 (Chemistry & Metallurgy)?
Our database includes 109 publications tagged with this CPC code.
Is patent activity under CPC C01B13/0251 growing?
Publication counts under this code: 2 in 2024 vs 1 in 2025 (latest complete years).
C01B13/0251 | PatentsDB