Hierarchy/Derived subclasses
| 83 / 861 | -> 879 | -> 880 |
uspto searches
Patent Apps in 83/880Granted Patents in 83/880
Use the links above or do an advanced search in ppubs for:
(83/880.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.