Patent classifications
C
CHEMISTRY; METALLURGY
Load children
C07
ORGANIC CHEMISTRY
Load children
C07J
STEROIDS
Load children
1/00
Normal steroids containing carbon, hydrogen, halogen or oxygen, not substituted in position 17 beta by a carbon atom, e.g. estrane, androstane
Load children Filter patents View analytics View as hierarchy
C07J1/0055
not substituted in position 17
Filter patents View analytics View as hierarchy