the oxygen atom being part of a six-membered ring

the oxygen atom being part of a six-membered ring · 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 codeC07F9/6552
Official title{the oxygen atom being part of a six-membered ring}
Display labelthe oxygen atom being part of a six-membered ring
Total patents50

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
20165
20172
20183
20197
20203
20218
20223
20234
20245
20256
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 C07F9/6552?
CPC C07F9/6552 is the Cooperative Patent Classification code for “the oxygen atom being part of a six-membered ring.”
How many patents are filed under CPC C07F9/6552 (the oxygen atom being part of a six-membered ring)?
Our database includes 50 publications tagged with this CPC code.
Is patent activity under CPC C07F9/6552 growing?
Publication counts under this code: 5 in 2024 vs 6 in 2025 (latest complete years).