Hierarchy/Derived subclasses
| 401 / 99 | -> 103 |
uspto searches
Patent Apps in 401/103Granted Patents in 401/103
Use the links above or do an advanced search in ppubs for:
(401/103.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.