Hierarchy/Derived subclasses
152 / 151 | -> 167 | -> 170 | -> 173 | -> 175 | -> 176 |
-> 177 |
uspto searches
Patent Apps in 152/175Granted Patents in 152/175
Use the links above or do an advanced search in ppubs for:
(152/175.ccls. or 152/176.ccls. or 152/177.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.