by rollers

by rollers · 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 codeB21D3/02
Official titleby rollers
Display labelby rollers
Total patents48

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
20151
20164
20174
20185
20196
202010
20216
20222
20236
20241
20253

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 B21D3/02?
CPC B21D3/02 is the Cooperative Patent Classification code for “by rollers.”
How many patents are filed under CPC B21D3/02 (by rollers)?
Our database includes 48 publications tagged with this CPC code.
Is patent activity under CPC B21D3/02 growing?
Publication counts under this code: 1 in 2024 vs 3 in 2025 (latest complete years).