Hierarchy/Derived subclasses
| 418 / 160 | -> 161 | -> 176 |
uspto searches
Patent Apps in 418/176Granted Patents in 418/176
Use the links above or do an advanced search in ppubs for:
(418/176.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.