Hierarchy/Derived subclasses
| 235 / 51 | -> 54r | -> 54f |
uspto searches
Patent Apps in 235/54FGranted Patents in 235/54F
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.