Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles

Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles · 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 codeB29C48/335
Official titleMultiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
Display labelMultiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
Total patents70

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
201513
201610
20176
201812
20196
20209
20215
20223
20231
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 B29C48/335?
CPC B29C48/335 is the Cooperative Patent Classification code for “Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles.”
How many patents are filed under CPC B29C48/335 (Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles)?
Our database includes 70 publications tagged with this CPC code.
Is patent activity under CPC B29C48/335 growing?
Publication counts under this code: 3 in 2024 vs 2 in 2025 (latest complete years).