Alumina

Alumina · 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 codeC04B14/303
Official title{Alumina}
Display labelAlumina
Total patents176

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
201517
201612
201712
201817
201919
202019
202112
202219
202324
202415
20256
20264

Representative patents

Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.

Frequently asked questions

Answers are generated from the same data shown on this page.

What is CPC C04B14/303?
CPC C04B14/303 is the Cooperative Patent Classification code for “Alumina.”
How many patents are filed under CPC C04B14/303 (Alumina)?
Our database includes 176 publications tagged with this CPC code.
Is patent activity under CPC C04B14/303 growing?
Publication counts under this code: 15 in 2024 vs 6 in 2025 (latest complete years).