having unsaturation outside the aromatic rings

having unsaturation outside the aromatic 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 codeC07C65/28
Official titlehaving unsaturation outside the aromatic rings
Display labelhaving unsaturation outside the aromatic rings
Total patents50

Filing trend

Year-over-year patent counts classified under this CPC code.

Filing activity over the last five years is growing.

Patents filed per year
YearPatents
20152
20163
20172
20182
20194
20205
20214
20227
20236
20245
20256
20264

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 C07C65/28?
CPC C07C65/28 is the Cooperative Patent Classification code for “having unsaturation outside the aromatic rings.”
How many patents are filed under CPC C07C65/28 (having unsaturation outside the aromatic rings)?
Our database includes 50 publications tagged with this CPC code.
Is patent activity under CPC C07C65/28 growing?
Publication counts under this code: 5 in 2024 vs 6 in 2025 (latest complete years).