Hierarchy/Derived subclasses
| 417 / 212 | -> 217 |
uspto searches
Patent Apps in 417/217Granted Patents in 417/217
Use the links above or do an advanced search in ppubs for:
(417/217.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.