Application of procedures in order to alter the diameter of tube ends (B21D39/00 takes precedence {; plastic tubes B29C57/08})

Application of procedures in order to alter the diameter of tube ends (B21D39/00 takes precedence {; plastic tubes B29C57/08}) · 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 codeB21D41/00
Official titleApplication of procedures in order to alter the diameter of tube ends (B21D39/00 takes precedence {; plastic tubes B29C57/08})
Display labelApplication of procedures in order to alter the diameter of tube ends (B21D39/00 takes precedence {; plastic tubes B29C57/08})
Total patents27

Filing trend

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

Filing activity over the last five years is rapidly declining.

Patents filed per year
YearPatents
20156
20168
20184
20193
20201
20233
20251
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 B21D41/00?
CPC B21D41/00 is the Cooperative Patent Classification code for “Application of procedures in order to alter the diameter of tube ends (B21D39/00 takes precedence {; plastic tubes B29C57/08}).”
How many patents are filed under CPC B21D41/00 (Application of procedures in order to alter the diameter of tube ends (B21D39/00 takes precedence {; plastic tubes B29C57/08}))?
Our database includes 27 publications tagged with this CPC code.
Is patent activity under CPC B21D41/00 growing?
Publication counts under this code: 3 in 2023 vs 1 in 2025 (latest complete years).