Hierarchy/Derived subclasses
138 / 97 | -> 98 | -> 99 |
uspto searches
Patent Apps in 138/97Granted Patents in 138/97
Use the links above or do an advanced search in ppubs for:
(138/97.ccls. or 138/98.ccls. or 138/99.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.