Hierarchy/Derived subclasses
| 217 / 72 | -> 86 |
uspto searches
Patent Apps in 217/86Granted Patents in 217/86
Use the links above or do an advanced search in ppubs for:
(217/86.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.