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having heteroatoms other than oxygen and nitrogen in the ring

having heteroatoms other than oxygen and nitrogen in the ring · Cooperative Patent Classification (CPC)

Chemical and metallurgical processes, compounds, and materials.

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Mapped technology topics for this CPC code.

CPC classification statistics
Metric	Value
CPC code	C08G18/209
Official title	{having heteroatoms other than oxygen and nitrogen in the ring}
Display label	having heteroatoms other than oxygen and nitrogen in the ring
Total patents	4

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

Filing activity appears stable based on the most recent years.

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