• All sections
• C - Chemistrymetallurgy
• C07C - Acyclic or carbocyclic compounds
• C07C 65/21 - Compounds having carboxyl groups bound to carbon atoms of six-membered aromatic rings and containing any of the groups OH, O-metal, —CHO, keto, ether, groups, groups, or groups containing ether groups, groups, groups, or groups

Patent holdings for IPC class C07C 65/21

Total number of patents in this class: 135

10-year publication summary

Principal owners for this class