Hierarchy/Derived subclasses
16 / 18r | -> 18cg |
uspto searches
Patent Apps in 16/18cgGranted Patents in 16/18cg
Use the links above or do an advanced search in ppubs for:
(16/18cg.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.