Hierarchy/Derived subclasses
420 / 8 | -> 104 | -> 112 | -> 113 |
uspto searches
Patent Apps in 420/113Granted Patents in 420/113
Use the links above or do an advanced search in ppubs for:
(420/113.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.