Hierarchy/Derived subclasses
| 70 / 266 | -> 286 | -> 333r | -> 333a |
uspto searches
Patent Apps in 70/333AGranted Patents in 70/333A
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.