for packaging two or more different materials which must be maintained separate prior to use in admixture

for packaging two or more different materials which must be maintained separate prior to use in admixture · 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 codeB65D81/32
Official titlefor packaging two or more different materials which must be maintained separate prior to use in admixture
Display labelfor packaging two or more different materials which must be maintained separate prior to use in admixture
Total patents252

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
201526
201641
201741
201828
201924
202019
202114
202217
202312
202415
202511
20264

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 B65D81/32?
CPC B65D81/32 is the Cooperative Patent Classification code for “for packaging two or more different materials which must be maintained separate prior to use in admixture.”
How many patents are filed under CPC B65D81/32 (for packaging two or more different materials which must be maintained separate prior to use in admixture)?
Our database includes 252 publications tagged with this CPC code.
Is patent activity under CPC B65D81/32 growing?
Publication counts under this code: 15 in 2024 vs 11 in 2025 (latest complete years).