Membranes; Filters (filters or filtration in general B01D24/00-B01D41/00)

Membranes; Filters (filters or filtration in general B01D24/00-B01D41/00) · Cooperative Patent Classification (CPC)

Chemical and metallurgical processes, compounds, and materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeC12M25/02
Official title{Membranes; Filters (filters or filtration in general B01D24/00-B01D41/00)}
Display labelMembranes; Filters (filters or filtration in general B01D24/00-B01D41/00)
Total patents1,058

Filing trend

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

Filing activity over the last five years is declining.

Patents filed per year
YearPatents
201537
201628
201760
201887
201975
2020103
2021127
2022123
2023126
2024167
202598
202627

Representative patents

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

Frequently asked questions

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

What is CPC C12M25/02?
CPC C12M25/02 is the Cooperative Patent Classification code for “Membranes; Filters (filters or filtration in general B01D24/00-B01D41/00).”
How many patents are filed under CPC C12M25/02 (Membranes; Filters (filters or filtration in general B01D24/00-B01D41/00))?
Our database includes 1,058 publications tagged with this CPC code.
Is patent activity under CPC C12M25/02 growing?
Publication counts under this code: 167 in 2024 vs 98 in 2025 (latest complete years).