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Making special pig-iron, e.g. by applying additives, e.g. oxides of other metals

Making special pig-iron, e.g. by applying additives, e.g. oxides of other metals · Cooperative Patent Classification (CPC)

Chemical and metallurgical processes, compounds, and materials.

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Mapped technology topics for this CPC code.

CPC classification statistics
Metric	Value
CPC code	C21B5/02
Official title	Making special pig-iron, e.g. by applying additives, e.g. oxides of other metals
Display label	Making special pig-iron, e.g. by applying additives, e.g. oxides of other metals
Total patents	6

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

Filing activity over the last five years is stable.

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