in which the oxirane rings are condensed with a carbocyclic ring system having three or more relevant rings

in which the oxirane rings are condensed with a carbocyclic ring system having three or more relevant rings · 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 codeC07D303/06
Official titlein which the oxirane rings are condensed with a carbocyclic ring system having three or more relevant rings
Display labelin which the oxirane rings are condensed with a carbocyclic ring system having three or more relevant rings
Total patents33

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
20153
20162
20173
20183
20196
20202
20213
20227
20253
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 C07D303/06?
CPC C07D303/06 is the Cooperative Patent Classification code for “in which the oxirane rings are condensed with a carbocyclic ring system having three or more relevant rings.”
How many patents are filed under CPC C07D303/06 (in which the oxirane rings are condensed with a carbocyclic ring system having three or more relevant rings)?
Our database includes 33 publications tagged with this CPC code.
Is patent activity under CPC C07D303/06 growing?
Publication counts under this code: 7 in 2022 vs 3 in 2025 (latest complete years).