by bubbling (mixers with gas or liquid agitation, e.g. with air supply tubes B01F33/40)

by bubbling (mixers with gas or liquid agitation, e.g. with air supply tubes B01F33/40) · 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 codeB01F23/231
Official titleby bubbling (mixers with gas or liquid agitation, e.g. with air supply tubes B01F33/40)
Display labelby bubbling (mixers with gas or liquid agitation, e.g. with air supply tubes B01F33/40)
Total patents205

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
201519
201619
201724
201819
201920
202022
202126
202226
20238
202413
20258
20261

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 B01F23/231?
CPC B01F23/231 is the Cooperative Patent Classification code for “by bubbling (mixers with gas or liquid agitation, e.g. with air supply tubes B01F33/40).”
How many patents are filed under CPC B01F23/231 (by bubbling (mixers with gas or liquid agitation, e.g. with air supply tubes B01F33/40))?
Our database includes 205 publications tagged with this CPC code.
Is patent activity under CPC B01F23/231 growing?
Publication counts under this code: 13 in 2024 vs 8 in 2025 (latest complete years).