Hierarchy/Derived subclasses
| 401 / 118 | -> 119 |
uspto searches
Patent Apps in 401/119Granted Patents in 401/119
Use the links above or do an advanced search in ppubs for:
(401/119.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.