Hierarchy/Derived subclasses
200 / 33r | -> 35r | -> 38r | -> 38d | -> 38dc |
uspto searches
Patent Apps in 200/38DCGranted Patents in 200/38DC
Use the links above or do an advanced search in ppubs for:
()
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.