Joining sheets for making inflated articles without using a mould

Joining sheets for making inflated articles without using a mould · 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 codeB29C66/439
Official title{Joining sheets for making inflated articles without using a mould}
Display labelJoining sheets for making inflated articles without using a mould
Total patents93

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
20156
20164
20178
201811
201914
20206
202114
20229
20238
20245
20258

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 B29C66/439?
CPC B29C66/439 is the Cooperative Patent Classification code for “Joining sheets for making inflated articles without using a mould.”
How many patents are filed under CPC B29C66/439 (Joining sheets for making inflated articles without using a mould)?
Our database includes 93 publications tagged with this CPC code.
Is patent activity under CPC B29C66/439 growing?
Publication counts under this code: 5 in 2024 vs 8 in 2025 (latest complete years).