Hierarchy/Derived subclasses
248 / 682 | -> 684 |
uspto searches
Patent Apps in 248/684Granted Patents in 248/684
Use the links above or do an advanced search in ppubs for:
(248/684.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.