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Four-membered rings

Four-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 codeC07F9/568
Official titleFour-membered rings
Display labelFour-membered rings
Total patents4

Filing trend

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

Filing activity appears to be growing based on the most recent years.

Patents filed per year
YearPatents
20201
20233

Representative patents

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