Auxetic foams, i.e. material with negative Poisson ratio; anti rubber; dilatational; re-entrant

Auxetic foams, i.e. material with negative Poisson ratio; anti rubber; dilatational; re-entrant · 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 codeB29C44/357
Official title{Auxetic foams, i.e. material with negative Poisson ratio; anti rubber; dilatational; re-entrant}
Display labelAuxetic foams, i.e. material with negative Poisson ratio; anti rubber; dilatational; re-entrant
Total patents62

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
20155
20163
20176
20189
20195
20205
20215
20224
20234
202412
20253
20261

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 B29C44/357?
CPC B29C44/357 is the Cooperative Patent Classification code for “Auxetic foams, i.e. material with negative Poisson ratio; anti rubber; dilatational; re-entrant.”
How many patents are filed under CPC B29C44/357 (Auxetic foams, i.e. material with negative Poisson ratio; anti rubber; dilatational; re-entrant)?
Our database includes 62 publications tagged with this CPC code.
Is patent activity under CPC B29C44/357 growing?
Publication counts under this code: 12 in 2024 vs 3 in 2025 (latest complete years).