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Eight-membered rings

Eight-membered 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 codeC07D267/22
Official titleEight-membered rings
Display labelEight-membered rings
Total patents18

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
20163
20182
20194
20201
20231
20242
20252
20263

Representative patents

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