Hierarchy/Derived subclasses
556 / 1 | -> 32 | -> 35 | -> 36 |
uspto searches
Patent Apps in 556/36Granted Patents in 556/36
Use the links above or do an advanced search in ppubs for:
(556/36.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.