Hierarchy/Derived subclasses
132 / 212 | -> 223 | -> 226 | -> 237 | -> 238 | |
-> 239 | -> 240 | ||||
-> 241 | |||||
-> 242 |
uspto searches
Patent Apps in 132/237Granted Patents in 132/237
Use the links above or do an advanced search in ppubs for:
(132/237.ccls. or 132/238.ccls. or 132/239.ccls. or 132/240.ccls. or 132/241.ccls. or 132/242.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.