Patent classifications
C
CHEMISTRY; METALLURGY
Load children
C09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
Load children
C09B
ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; , e.g. PIGMENTS; MORDANTS; LAKES
Load children
C09B55/009
Azomethine dyes, the C-atom of the group -C=N- being part of a ring (Image)
Filter patents View analytics View as hierarchy