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with rotary filtering surfaces, which are neither cylindrical nor planar, e.g. helical surfaces

with rotary filtering surfaces, which are neither cylindrical nor planar, e.g. helical surfaces · Cooperative Patent Classification (CPC)

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

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeB01D33/27
Official titlewith rotary filtering surfaces, which are neither cylindrical nor planar, e.g. helical surfaces
Display labelwith rotary filtering surfaces, which are neither cylindrical nor planar, e.g. helical surfaces
Total patents14

Filing trend

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

Filing activity over the last five years is rapidly declining.

Patents filed per year
YearPatents
20163
20172
20193
20212
20221
20242
20251

Representative patents

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