Hierarchy/Derived subclasses
| 180 / 6.2 | -> 6.64 |
uspto searches
Patent Apps in 180/6.64Granted Patents in 180/6.64
Use the links above or do an advanced search in ppubs for:
(180/6.64.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.