Hierarchy/Derived subclasses
434 / 156 | -> 167 | -> 172 | -> 175 |
uspto searches
Patent Apps in 434/175Granted Patents in 434/175
Use the links above or do an advanced search in ppubs for:
(434/175.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.