with active means, e.g. by using air blowers or liquid pumps

with active means, e.g. by using air blowers or liquid pumps · Cooperative Patent Classification (CPC)

Agriculture, food, personal care, health, and life sciences.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeA47C21/044
Official title{with active means, e.g. by using air blowers or liquid pumps}
Display labelwith active means, e.g. by using air blowers or liquid pumps
Total patents272

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
20157
201618
201714
201820
201915
202021
202143
202224
202331
202439
202530
202610

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 A47C21/044?
CPC A47C21/044 is the Cooperative Patent Classification code for “with active means, e.g. by using air blowers or liquid pumps.”
How many patents are filed under CPC A47C21/044 (with active means, e.g. by using air blowers or liquid pumps)?
Our database includes 272 publications tagged with this CPC code.
Is patent activity under CPC A47C21/044 growing?
Publication counts under this code: 39 in 2024 vs 30 in 2025 (latest complete years).