nonlinear fibres, e.g. crimped or coiled fibres

nonlinear fibres, e.g. crimped or coiled fibres · Cooperative Patent Classification (CPC)

Textile and paper production, treatment, and products.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeD04H1/43918
Official title{nonlinear fibres, e.g. crimped or coiled fibres}
Display labelnonlinear fibres, e.g. crimped or coiled fibres
Total patents97

Filing trend

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

Filing activity over the last five years is growing.

Patents filed per year
YearPatents
20153
20164
201710
20187
20196
20209
20217
20228
202310
202418
202512
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 D04H1/43918?
CPC D04H1/43918 is the Cooperative Patent Classification code for “nonlinear fibres, e.g. crimped or coiled fibres.”
How many patents are filed under CPC D04H1/43918 (nonlinear fibres, e.g. crimped or coiled fibres)?
Our database includes 97 publications tagged with this CPC code.
Is patent activity under CPC D04H1/43918 growing?
Publication counts under this code: 18 in 2024 vs 12 in 2025 (latest complete years).