Hierarchy/Derived subclasses
451 / 64 | -> 103 | -> 111 | -> 112 |
uspto searches
Patent Apps in 451/111Granted Patents in 451/111
Use the links above or do an advanced search in ppubs for:
(451/111.ccls. or 451/112.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.