• All sections
• C - Chemistry; metallurgy
• C07D - Heterocyclic compounds
• C07D 213/89 - Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members with hetero atoms directly attached to the ring nitrogen atom

Patent holdings for IPC class C07D 213/89

Total number of patents in this class: 413

10-year publication summary

Principal owners for this class