by filtration, e.g. including ultra filtration, dialysis (C11B3/005 takes precedence)

by filtration, e.g. including ultra filtration, dialysis (C11B3/005 takes precedence) · 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 codeC11B3/008
Official title{by filtration, e.g. including ultra filtration, dialysis (C11B3/005 takes precedence)}
Display labelby filtration, e.g. including ultra filtration, dialysis (C11B3/005 takes precedence)
Total patents124

Filing trend

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

Filing activity over the last five years is growing.

Patents filed per year
YearPatents
201511
201611
20177
20189
20198
202017
202111
202211
20239
202413
202514
20263

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 C11B3/008?
CPC C11B3/008 is the Cooperative Patent Classification code for “by filtration, e.g. including ultra filtration, dialysis (C11B3/005 takes precedence).”
How many patents are filed under CPC C11B3/008 (by filtration, e.g. including ultra filtration, dialysis (C11B3/005 takes precedence))?
Our database includes 124 publications tagged with this CPC code.
Is patent activity under CPC C11B3/008 growing?
Publication counts under this code: 13 in 2024 vs 14 in 2025 (latest complete years).