Hierarchy/Derived subclasses
| 380 / 56 | -> 57 | -> 58 |
uspto searches
Patent Apps in 380/57Granted Patents in 380/57
Use the links above or do an advanced search in ppubs for:
(380/57.ccls. or 380/58.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.