Hierarchy/Derived subclasses
D13 / 123 | -> 158 | -> 18 | -> 168 |
uspto searches
Patent Apps in D13/168Granted Patents in D13/168
Use the links above or do an advanced search in ppubs for:
(D13/168.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.