Hierarchy/Derived subclasses
| 194 / 215 | -> 216 | -> 217 |
uspto searches
Patent Apps in 194/217Granted Patents in 194/217
Use the links above or do an advanced search in ppubs for:
(194/217.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.