Hierarchy/Derived subclasses
| 66 / 7 | -> 82r | -> 83 | -> 84r | -> 85r | -> 85a |
uspto searches
Patent Apps in 66/85RGranted Patents in 66/85R
Use the links above or do an advanced search in ppubs for:
()
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.