Hierarchy/Derived subclasses
| 83 / 861 | -> 866 | -> 867 |
| -> 868 |
uspto searches
Patent Apps in 83/866Granted Patents in 83/866
Use the links above or do an advanced search in ppubs for:
(83/866.ccls. or 83/867.ccls. or 83/868.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.