Hierarchy/Derived subclasses
235 / 4 | -> 5 |
uspto searches
Patent Apps in 235/4Granted Patents in 235/4
Use the links above or do an advanced search in ppubs for:
(235/4.ccls. or 235/5.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.