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having three rings

having three 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 codeC07C49/643
Official titlehaving three rings
Display labelhaving three rings
Total patents13

Filing trend

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

Filing activity over the last five years is rapidly growing.

Patents filed per year
YearPatents
20171
20181
20193
20222
20233
20243

Representative patents

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