Sealing off parts of the cavities

Sealing off parts of the cavities · 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 codeB29C44/188
Official title{Sealing off parts of the cavities}
Display labelSealing off parts of the cavities
Total patents124

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
20154
20165
201714
201813
201919
202013
202112
202212
202313
20249
20258
20262

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 B29C44/188?
CPC B29C44/188 is the Cooperative Patent Classification code for “Sealing off parts of the cavities.”
How many patents are filed under CPC B29C44/188 (Sealing off parts of the cavities)?
Our database includes 124 publications tagged with this CPC code.
Is patent activity under CPC B29C44/188 growing?
Publication counts under this code: 9 in 2024 vs 8 in 2025 (latest complete years).