Hierarchy/Derived subclasses
236 / 44r | -> 44c |
uspto searches
Patent Apps in 236/44cGranted Patents in 236/44c
Use the links above or do an advanced search in ppubs for:
(236/44c.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.