Articles of indefinite length

Articles of indefinite length · 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 codeB29C41/44
Official titleArticles of indefinite length
Display labelArticles of indefinite length
Total patents36

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
20152
20162
20173
20182
20198
20202
20213
20227
20232
20243
20252

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 B29C41/44?
CPC B29C41/44 is the Cooperative Patent Classification code for “Articles of indefinite length.”
How many patents are filed under CPC B29C41/44 (Articles of indefinite length)?
Our database includes 36 publications tagged with this CPC code.
Is patent activity under CPC B29C41/44 growing?
Publication counts under this code: 3 in 2024 vs 2 in 2025 (latest complete years).