• All sections
• C - Chemistrymetallurgy
• C07C - Acyclic or carbocyclic compounds
• C07C 39/21 - Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring polycyclic, containing only six-membered aromatic rings as cyclic part, with unsaturation outside the rings with at least one hydroxy group on a non-condensed ring

Patent holdings for IPC class C07C 39/21

Total number of patents in this class: 131

10-year publication summary

Principal owners for this class