Dyes with anthracene nucleus not condensed with any other ring

Dyes with anthracene nucleus not condensed with any other ring · Cooperative Patent Classification (CPC)

Chemical and metallurgical processes, compounds, and materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeC09B1/00
Official titleDyes with anthracene nucleus not condensed with any other ring
Display labelDyes with anthracene nucleus not condensed with any other ring
Total patents205

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
201541
201640
201725
201831
201924
202012
202115
20226
20233
20246
20251
20261

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 C09B1/00?
CPC C09B1/00 is the Cooperative Patent Classification code for “Dyes with anthracene nucleus not condensed with any other ring.”
How many patents are filed under CPC C09B1/00 (Dyes with anthracene nucleus not condensed with any other ring)?
Our database includes 205 publications tagged with this CPC code.
Is patent activity under CPC C09B1/00 growing?
Publication counts under this code: 6 in 2024 vs 1 in 2025 (latest complete years).