Hierarchy/Derived subclasses
141 / 234 | -> 236 |
uspto searches
Patent Apps in 141/236Granted Patents in 141/236
Use the links above or do an advanced search in ppubs for:
(141/236.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.