• All sections
• C - Chemistry; metallurgy
• C07D - Heterocyclic compounds
• C07D 401/04 - Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings directly linked by a ring-member-to-ring- member bond

Patent holdings for IPC class C07D 401/04

Total number of patents in this class: 11562

10-year publication summary

Principal owners for this class