Hierarchy/Derived subclasses
| 70 / 57 | -> 58 | -> 63 | -> 69 | -> 70 | |
| -> 71 | -> 72 | ||||
| -> 73 | |||||
| -> 74 | -> 75 | ||||
| -> 76 |
uspto searches
Patent Apps in 70/69Granted Patents in 70/69
Use the links above or do an advanced search in ppubs for:
(70/69.ccls. or 70/70.ccls. or 70/71.ccls. or 70/72.ccls. or 70/73.ccls. or 70/74.ccls. or 70/75.ccls. or 70/76.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.