Hierarchy/Derived subclasses
| 83 / 861 | -> 869 |
uspto searches
Patent Apps in 83/869Granted Patents in 83/869
Use the links above or do an advanced search in ppubs for:
(83/869.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.