Patent classifications
C
CHEMISTRY; METALLURGY
Load children
C07
ORGANIC CHEMISTRY
Load children
C07D
HETEROCYCLIC COMPOUNDS
Load children
513/00
Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for in groups C07D463/00, C07D477/00 or C07D499/00 - C07D507/00
Load children Filter patents View analytics View as hierarchy