Hierarchy/Derived subclasses
200 / 50.01 | -> 50.02 | -> 50.18 |
uspto searches
Patent Apps in 200/50.18Granted Patents in 200/50.18
Use the links above or do an advanced search in ppubs for:
(200/50.18.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.