Hierarchy/Derived subclasses
217 / 5 | -> 128 | -> 129 |
uspto searches
Patent Apps in 217/128Granted Patents in 217/128
Use the links above or do an advanced search in ppubs for:
(217/128.ccls. or 217/129.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.