Hierarchy/Derived subclasses
337 / 14 | -> 142 | -> 227 | -> 228 | -> 231 | -> 232 |
-> 233 | |||||
-> 234 | |||||
-> 235 | |||||
-> 236 | |||||
-> 237 |
uspto searches
Patent Apps in 337/231Granted Patents in 337/231
Use the links above or do an advanced search in ppubs for:
(337/231.ccls. or 337/232.ccls. or 337/233.ccls. or 337/234.ccls. or 337/235.ccls. or 337/236.ccls. or 337/237.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.