for simultaneous blowing and sucking

for simultaneous blowing and sucking · 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 codeB64C21/025
Official title{for simultaneous blowing and sucking}
Display labelfor simultaneous blowing and sucking
Total patents131

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
20154
20167
20178
201811
201913
202017
202118
202213
202316
202416
20257
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 B64C21/025?
CPC B64C21/025 is the Cooperative Patent Classification code for “for simultaneous blowing and sucking.”
How many patents are filed under CPC B64C21/025 (for simultaneous blowing and sucking)?
Our database includes 131 publications tagged with this CPC code.
Is patent activity under CPC B64C21/025 growing?
Publication counts under this code: 16 in 2024 vs 7 in 2025 (latest complete years).