Hierarchy/Derived subclasses
| 68 / 3r | -> 13r | -> 18r | -> 18f | -> 18fa |
uspto searches
Patent Apps in 68/18FAGranted Patents in 68/18FA
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.