Hierarchy/Derived subclasses
| 23 / 293r | -> 313r | -> 313fb |
uspto searches
Patent Apps in 23/313FBGranted Patents in 23/313FB
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.