Hierarchy/Derived subclasses
| 109 / 23 | -> 24 |
uspto searches
Patent Apps in 109/24Granted Patents in 109/24
Use the links above or do an advanced search in ppubs for:
(109/24.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.