with two or more stirrers rotating at different speeds or in opposite directions about the same axis

with two or more stirrers rotating at different speeds or in opposite directions about the same axis · 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 codeB01F27/84
Official titlewith two or more stirrers rotating at different speeds or in opposite directions about the same axis
Display labelwith two or more stirrers rotating at different speeds or in opposite directions about the same axis
Total patents54

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
20175
20188
20196
20203
20217
20228
20237
20246
20253
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 B01F27/84?
CPC B01F27/84 is the Cooperative Patent Classification code for “with two or more stirrers rotating at different speeds or in opposite directions about the same axis.”
How many patents are filed under CPC B01F27/84 (with two or more stirrers rotating at different speeds or in opposite directions about the same axis)?
Our database includes 54 publications tagged with this CPC code.
Is patent activity under CPC B01F27/84 growing?
Publication counts under this code: 6 in 2024 vs 3 in 2025 (latest complete years).