Hierarchy/Derived subclasses
702 / 1 | -> 33 | -> 35 | -> 38 |
uspto searches
Patent Apps in 702/38Granted Patents in 702/38
Use the links above or do an advanced search in ppubs for:
(702/38.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.