Hierarchy/Derived subclasses
| 70 / 57 | -> 174 | -> 192 | -> 193 | -> 194 | -> 195 |
| -> 196 | -> 197 |
uspto searches
Patent Apps in 70/193Granted Patents in 70/193
Use the links above or do an advanced search in ppubs for:
(70/193.ccls. or 70/194.ccls. or 70/195.ccls. or 70/196.ccls. or 70/197.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.