Hierarchy/Derived subclasses
| 24 / 68r | -> 71r | -> 71sd |
uspto searches
Patent Apps in 24/71sdGranted Patents in 24/71sd
Use the links above or do an advanced search in ppubs for:
(24/71sd.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.