Aryl or substituted aryl radicals

Aryl or substituted aryl radicals · 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 codeC07D263/57
Official titleAryl or substituted aryl radicals
Display labelAryl or substituted aryl radicals
Total patents316

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
201528
201625
201734
201832
201926
202027
202134
202228
202326
202432
202523
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 C07D263/57?
CPC C07D263/57 is the Cooperative Patent Classification code for “Aryl or substituted aryl radicals.”
How many patents are filed under CPC C07D263/57 (Aryl or substituted aryl radicals)?
Our database includes 316 publications tagged with this CPC code.
Is patent activity under CPC C07D263/57 growing?
Publication counts under this code: 32 in 2024 vs 23 in 2025 (latest complete years).