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with more than three condensed rings

with more than three condensed 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 codeC07C23/46
Official titlewith more than three condensed rings
Display labelwith more than three condensed rings
Total patents7

Filing trend

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

Filing activity over the last five years is stable.

Patents filed per year
YearPatents
20161
20171
20181
20192
20211
20241

Representative patents

Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.