What is CPC B01D33/155?

CPC B01D33/155 is the Cooperative Patent Classification code for “the filtering surface being parallel to the rotation axis.”

How many patents are filed under CPC B01D33/155 (the filtering surface being parallel to the rotation axis)?

Our database includes 42 publications tagged with this CPC code.

Publication counts under this code: 2 in 2024 vs 1 in 2025 (latest complete years).

the filtering surface being parallel to the rotation axis · Cooperative Patent Classification (CPC)

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

Mapped technology topics for this CPC code.

CPC classification statistics
Metric	Value
CPC code	B01D33/155
Official title	{the filtering surface being parallel to the rotation axis}
Display label	the filtering surface being parallel to the rotation axis
Total patents	42

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.

Answers are generated from the same data shown on this page.

What is CPC B01D33/155?: CPC B01D33/155 is the Cooperative Patent Classification code for “the filtering surface being parallel to the rotation axis.”
How many patents are filed under CPC B01D33/155 (the filtering surface being parallel to the rotation axis)?: Our database includes 42 publications tagged with this CPC code.
Is patent activity under CPC B01D33/155 growing?: Publication counts under this code: 2 in 2024 vs 1 in 2025 (latest complete years).