What is CPC B01D27/00?

CPC B01D27/00 is the Cooperative Patent Classification code for “Cartridge filters of the throw-away type.”

How many patents are filed under CPC B01D27/00 (Cartridge filters of the throw-away type)?

Our database includes 88 publications tagged with this CPC code.

Publication counts under this code: 7 in 2024 vs 3 in 2025 (latest complete years).

Cartridge filters of the throw-away type · 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	B01D27/00
Official title	Cartridge filters of the throw-away type
Display label	Cartridge filters of the throw-away type
Total patents	88

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 B01D27/00?: CPC B01D27/00 is the Cooperative Patent Classification code for “Cartridge filters of the throw-away type.”
How many patents are filed under CPC B01D27/00 (Cartridge filters of the throw-away type)?: Our database includes 88 publications tagged with this CPC code.
Is patent activity under CPC B01D27/00 growing?: Publication counts under this code: 7 in 2024 vs 3 in 2025 (latest complete years).