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by pressure plates, membranes

by pressure plates, membranes · 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	B01D33/644
Official title	{by pressure plates, membranes}
Display label	by pressure plates, membranes
Total patents	2

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

Filing activity appears stable based on the most recent years.

Patents filed per year
Year	Patents
2020	1
2022	1

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