with acyl radicals or hetero atoms directly attached to ring nitrogen atoms

with acyl radicals or hetero atoms directly attached to ring nitrogen 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 codeC07D233/38
Official titlewith acyl radicals or hetero atoms directly attached to ring nitrogen atoms
Display labelwith acyl radicals or hetero atoms directly attached to ring nitrogen atoms
Total patents26

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
20151
20166
20173
20184
20193
20203
20211
20222
20231
20242

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 C07D233/38?
CPC C07D233/38 is the Cooperative Patent Classification code for “with acyl radicals or hetero atoms directly attached to ring nitrogen atoms.”
How many patents are filed under CPC C07D233/38 (with acyl radicals or hetero atoms directly attached to ring nitrogen atoms)?
Our database includes 26 publications tagged with this CPC code.
Is patent activity under CPC C07D233/38 growing?
Publication counts under this code: 1 in 2023 vs 2 in 2024 (latest complete years).