Hierarchy/Derived subclasses
| 398 / 182 | -> 200 |
uspto searches
Patent Apps in 398/200Granted Patents in 398/200
Use the links above or do an advanced search in ppubs for:
(398/200.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.