Hierarchy/Derived subclasses
24 / 68r | -> 69r | -> 69at |
uspto searches
Patent Apps in 24/69atGranted Patents in 24/69at
Use the links above or do an advanced search in ppubs for:
(24/69at.ccls.)
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.