Amino-anthraquinones {(C09B1/007 takes precedence)}

Amino-anthraquinones {(C09B1/007 takes precedence)} · 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 codeC09B1/16
Official titleAmino-anthraquinones {(C09B1/007 takes precedence)}
Display labelAmino-anthraquinones {(C09B1/007 takes precedence)}
Total patents39

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
20153
20164
20176
20187
20196
20205
20211
20223
20231
20242
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 C09B1/16?
CPC C09B1/16 is the Cooperative Patent Classification code for “Amino-anthraquinones {(C09B1/007 takes precedence)}.”
How many patents are filed under CPC C09B1/16 (Amino-anthraquinones {(C09B1/007 takes precedence)})?
Our database includes 39 publications tagged with this CPC code.
Is patent activity under CPC C09B1/16 growing?
Publication counts under this code: 1 in 2023 vs 2 in 2024 (latest complete years).