Hierarchy/Derived subclasses
180 / 166 |
uspto searches
Patent Apps in 180/166Granted Patents in 180/166
Use the links above or do an advanced search in ppubs for:
(180/166.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.