characterised by thread material

characterised by thread material · 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 codeD04B21/08
Official titlecharacterised by thread material
Display labelcharacterised by thread material
Total patents73

Filing trend

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

Filing activity over the last five years is stable.

Patents filed per year
YearPatents
20153
20168
20171
20184
20194
202011
20218
20223
20238
202412
20258
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 D04B21/08?
CPC D04B21/08 is the Cooperative Patent Classification code for “characterised by thread material.”
How many patents are filed under CPC D04B21/08 (characterised by thread material)?
Our database includes 73 publications tagged with this CPC code.
Is patent activity under CPC D04B21/08 growing?
Publication counts under this code: 12 in 2024 vs 8 in 2025 (latest complete years).