Hierarchy/Derived subclasses
| 70 / 2 | -> 3 | -> 4 |
| -> 5 |
uspto searches
Patent Apps in 70/3Granted Patents in 70/3
Use the links above or do an advanced search in ppubs for:
(70/3.ccls. or 70/4.ccls. or 70/5.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.