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not containing aluminium

not containing aluminium · 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 codeC01B33/425
Official title{not containing aluminium}
Display labelnot containing aluminium
Total patents7

Filing trend

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

Filing activity appears to be declining based on the most recent years.

Patents filed per year
YearPatents
20191
20214
20242

Representative patents

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