for making articles having hollow walls

for making articles having hollow walls · 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 codeB29C51/006
Official title{for making articles having hollow walls}
Display labelfor making articles having hollow walls
Total patents37

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
20163
20172
20184
20192
20204
202110
20222
20231
20245
20254

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 B29C51/006?
CPC B29C51/006 is the Cooperative Patent Classification code for “for making articles having hollow walls.”
How many patents are filed under CPC B29C51/006 (for making articles having hollow walls)?
Our database includes 37 publications tagged with this CPC code.
Is patent activity under CPC B29C51/006 growing?
Publication counts under this code: 5 in 2024 vs 4 in 2025 (latest complete years).