Chemical after-treatment of artificial filaments or the like during manufacture

Chemical after-treatment of artificial filaments or the like during manufacture · 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 codeD01F11/00
Official titleChemical after-treatment of artificial filaments or the like during manufacture
Display labelChemical after-treatment of artificial filaments or the like during manufacture
Total patents52

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
20155
20168
20171
20184
20196
20202
20216
20225
20236
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 D01F11/00?
CPC D01F11/00 is the Cooperative Patent Classification code for “Chemical after-treatment of artificial filaments or the like during manufacture.”
How many patents are filed under CPC D01F11/00 (Chemical after-treatment of artificial filaments or the like during manufacture)?
Our database includes 52 publications tagged with this CPC code.
Is patent activity under CPC D01F11/00 growing?
Publication counts under this code: 5 in 2024 vs 4 in 2025 (latest complete years).