Hierarchy/Derived subclasses
| 200 / 50.01 | -> 50.21 | -> 50.22 |
uspto searches
Patent Apps in 200/50.22Granted Patents in 200/50.22
Use the links above or do an advanced search in ppubs for:
(200/50.22.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.