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Obtaining zinc oxide (purifying zinc oxide C01G9/02)

Obtaining zinc oxide (purifying zinc oxide C01G9/02) · 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 codeC22B19/34
Official titleObtaining zinc oxide (purifying zinc oxide C01G9/02)
Display labelObtaining zinc oxide (purifying zinc oxide C01G9/02)
Total patents4

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
20163
20201

Representative patents

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