Hierarchy/Derived subclasses
342 / 26r | -> epo | -> 26b |
uspto searches
Patent Apps in 342/26BGranted Patents in 342/26B
Use the links above or do an advanced search in ppubs for:
()
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.