Hierarchy/Derived subclasses
19 / 65r | -> 65cr |
uspto searches
Patent Apps in 19/65CRGranted Patents in 19/65CR
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.