for making multilayered articles

for making multilayered articles · 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 codeB29C39/146
Official title{for making multilayered articles}
Display labelfor making multilayered articles
Total patents32

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
20152
20173
201810
20194
20205
20213
20233
20252

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 B29C39/146?
CPC B29C39/146 is the Cooperative Patent Classification code for “for making multilayered articles.”
How many patents are filed under CPC B29C39/146 (for making multilayered articles)?
Our database includes 32 publications tagged with this CPC code.
Is patent activity under CPC B29C39/146 growing?
Publication counts under this code: 3 in 2023 vs 2 in 2025 (latest complete years).