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in which the condensed system contains four or more hetero rings

in which the condensed system contains four or more hetero 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 codeC07D497/22
Official titlein which the condensed system contains four or more hetero rings
Display labelin which the condensed system contains four or more hetero rings
Total patents23

Filing trend

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

Filing activity over the last five years is stable.

Patents filed per year
YearPatents
20161
20172
20181
20193
20202
20212
20224
20234
20242
20252

Representative patents

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