Hierarchy/Derived subclasses
266 / 200 | -> 227 | -> 228 | |
-> 229 | -> 230 | ||
-> 231 | |||
-> 232 |
uspto searches
Patent Apps in 266/227Granted Patents in 266/227
Use the links above or do an advanced search in ppubs for:
(266/227.ccls. or 266/228.ccls. or 266/229.ccls. or 266/230.ccls. or 266/231.ccls. or 266/232.ccls.)
This will show what classes derive from the input. Ex: entering 43/42.24 shows the derived classes and the search that can be used to find patents or patent applications in those subclasses.