Hierarchy/Derived subclasses
701 / 1 | -> 51 | -> 53 | -> 54 |
uspto searches
Patent Apps in 701/53Granted Patents in 701/53
Use the links above or do an advanced search in ppubs for:
(701/53.ccls. or 701/54.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.