Hierarchy/Derived subclasses
175 / 319 |
uspto searches
Patent Apps in 175/319Granted Patents in 175/319
Use the links above or do an advanced search in ppubs for:
(175/319.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.