to carbon atoms of rings being part of condensed ring systems

to carbon atoms of rings being part of condensed ring systems · 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 codeC07C255/47
Official titleto carbon atoms of rings being part of condensed ring systems
Display labelto carbon atoms of rings being part of condensed ring systems
Total patents132

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
201519
201611
201713
201812
201910
202018
202111
20229
20238
202414
20255
20262

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 C07C255/47?
CPC C07C255/47 is the Cooperative Patent Classification code for “to carbon atoms of rings being part of condensed ring systems.”
How many patents are filed under CPC C07C255/47 (to carbon atoms of rings being part of condensed ring systems)?
Our database includes 132 publications tagged with this CPC code.
Is patent activity under CPC C07C255/47 growing?
Publication counts under this code: 14 in 2024 vs 5 in 2025 (latest complete years).