• All sections
• C - Chemistry; metallurgy
• C07F - Acyclic, carbocyclic, or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium
• C07F 9/6561 - Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom containing systems of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring or ring system, with or without other non-condensed hetero rings

Patent holdings for IPC class C07F 9/6561

Total number of patents in this class: 1329

10-year publication summary

Principal owners for this class