Barrels or cylinders

Barrels or cylinders · 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 codeB29C45/62
Official titleBarrels or cylinders
Display labelBarrels or cylinders
Total patents153

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
20161
20179
20187
20198
202010
202136
202223
202320
202423
202513
20263

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 B29C45/62?
CPC B29C45/62 is the Cooperative Patent Classification code for “Barrels or cylinders.”
How many patents are filed under CPC B29C45/62 (Barrels or cylinders)?
Our database includes 153 publications tagged with this CPC code.
Is patent activity under CPC B29C45/62 growing?
Publication counts under this code: 23 in 2024 vs 13 in 2025 (latest complete years).