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Organic colour formers, e.g. leuco dyes

Organic colour formers, e.g. leuco dyes · Cooperative Patent Classification (CPC)

Separating, mixing, shaping, printing, and transporting materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
Metric	Value
CPC code	B41M5/136
Official title	Organic colour formers, e.g. leuco dyes
Display label	Organic colour formers, e.g. leuco dyes
Total patents	7

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

Filing activity over the last five years is declining.

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