of paper or cardboard

of paper or cardboard · 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 codeB32B21/06
Official titleof paper or cardboard
Display labelof paper or cardboard
Total patents398

Filing trend

Year-over-year patent counts classified under this CPC code.

Filing activity over the last five years is stable.

Patents filed per year
YearPatents
20153
20168
201712
201837
201948
202042
202152
202237
202357
202444
202551
20267

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 B32B21/06?
CPC B32B21/06 is the Cooperative Patent Classification code for “of paper or cardboard.”
How many patents are filed under CPC B32B21/06 (of paper or cardboard)?
Our database includes 398 publications tagged with this CPC code.
Is patent activity under CPC B32B21/06 growing?
Publication counts under this code: 44 in 2024 vs 51 in 2025 (latest complete years).