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using rollers having projections to clear the filter apertures

using rollers having projections to clear the filter apertures · 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	B01D2201/089
Official title	using rollers having projections to clear the filter apertures
Display label	using rollers having projections to clear the filter apertures
Total patents	5

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

Filing activity appears stable based on the most recent years.

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