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containing a condensed ring system

containing a condensed ring system · Cooperative Patent Classification (CPC)

Chemical and metallurgical processes, compounds, and materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
Metric	Value
CPC code	C07C47/445
Official title	containing a condensed ring system
Display label	containing a condensed ring system
Total patents	2

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

Filing activity appears stable based on the most recent years.

Patents filed per year
Year	Patents
2017	1
2024	1

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