Hierarchy/Derived subclasses
111 / 906 | -> 909 | -> 910 |
uspto searches
Patent Apps in 111/909Granted Patents in 111/909
Use the links above or do an advanced search in ppubs for:
(111/909.ccls. or 111/910.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.