with oxygen or sulfur atoms directly attached to ring carbon atoms

with oxygen or sulfur atoms directly attached to ring carbon atoms · 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 codeC07D231/08
Official titlewith oxygen or sulfur atoms directly attached to ring carbon atoms
Display labelwith oxygen or sulfur atoms directly attached to ring carbon atoms
Total patents44

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
20159
20166
20178
20185
20194
20203
20223
20242
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 C07D231/08?
CPC C07D231/08 is the Cooperative Patent Classification code for “with oxygen or sulfur atoms directly attached to ring carbon atoms.”
How many patents are filed under CPC C07D231/08 (with oxygen or sulfur atoms directly attached to ring carbon atoms)?
Our database includes 44 publications tagged with this CPC code.
Is patent activity under CPC C07D231/08 growing?
Publication counts under this code: 2 in 2024 vs 4 in 2025 (latest complete years).