Hierarchy/Derived subclasses
| 217 / 72 | -> 91 | -> 94 | -> 95 |
uspto searches
Patent Apps in 217/94Granted Patents in 217/94
Use the links above or do an advanced search in ppubs for:
(217/94.ccls. or 217/95.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.