Hierarchy/Derived subclasses
702 / 1 | -> 33 | -> 50 | -> 52 |
uspto searches
Patent Apps in 702/52Granted Patents in 702/52
Use the links above or do an advanced search in ppubs for:
(702/52.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.