Winding-up or coiling

Winding-up or coiling · 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 codeB21C47/02
Official titleWinding-up or coiling
Display labelWinding-up or coiling
Total patents233

Filing trend

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

Filing activity over the last five years is rapidly growing.

Patents filed per year
YearPatents
20155
20164
20172
20186
20191
20205
202119
202244
202342
202438
202558
20269

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 B21C47/02?
CPC B21C47/02 is the Cooperative Patent Classification code for “Winding-up or coiling.”
How many patents are filed under CPC B21C47/02 (Winding-up or coiling)?
Our database includes 233 publications tagged with this CPC code.
Is patent activity under CPC B21C47/02 growing?
Publication counts under this code: 38 in 2024 vs 58 in 2025 (latest complete years).