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Interference pigments comprising a layer with a concentration gradient or a gradient of the refractive index

Interference pigments comprising a layer with a concentration gradient or a gradient of the refractive index · 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 codeC09C2200/20
Official titleInterference pigments comprising a layer with a concentration gradient or a gradient of the refractive index
Display labelInterference pigments comprising a layer with a concentration gradient or a gradient of the refractive index
Total patents11

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
20152
20172
20181
20201
20212
20231
20262

Representative patents

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