Venting, degassing or removing evaporated components in devices with rotary stirrers

Venting, degassing or removing evaporated components in devices with rotary stirrers · 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 codeB29B7/845
Official title{Venting, degassing or removing evaporated components in devices with rotary stirrers}
Display labelVenting, degassing or removing evaporated components in devices with rotary stirrers
Total patents266

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
201518
201623
201730
201821
201920
202030
202125
202225
202323
202428
202518
20265

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 B29B7/845?
CPC B29B7/845 is the Cooperative Patent Classification code for “Venting, degassing or removing evaporated components in devices with rotary stirrers.”
How many patents are filed under CPC B29B7/845 (Venting, degassing or removing evaporated components in devices with rotary stirrers)?
Our database includes 266 publications tagged with this CPC code.
Is patent activity under CPC B29B7/845 growing?
Publication counts under this code: 28 in 2024 vs 18 in 2025 (latest complete years).