Hierarchy/Derived subclasses
193 / 2r | -> 25r | -> 25ac |
uspto searches
Patent Apps in 193/25acGranted Patents in 193/25ac
Use the links above or do an advanced search in ppubs for:
(193/25ac.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.