Hierarchy/Derived subclasses
| 180 / 21 | -> 22 | -> 23 | -> 24 |
uspto searches
Patent Apps in 180/23Granted Patents in 180/23
Use the links above or do an advanced search in ppubs for:
(180/23.ccls. or 180/24.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.