Hierarchy/Derived subclasses
226 / 168 | -> s | -> 170 | -> 171 | -> 172 |
-> 173 |
uspto searches
Patent Apps in 226/170Granted Patents in 226/170
Use the links above or do an advanced search in ppubs for:
(226/170.ccls. or 226/171.ccls. or 226/172.ccls. or 226/173.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.