• All sections
• C - Chemistrymetallurgy
• C07D - Heterocyclic compounds
• C07D 305/08 - Heterocyclic compounds containing four-membered rings having one oxygen atom as the only ring hetero atoms not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring atoms

Patent holdings for IPC class C07D 305/08

Total number of patents in this class: 273

10-year publication summary

Principal owners for this class