Hierarchy/Derived subclasses
48 / 197r | -> 199r | -> 199fm |
uspto searches
Patent Apps in 48/199FMGranted Patents in 48/199FM
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.