Hierarchy/Derived subclasses
| 68 / 3r | -> 147 | -> 175 | -> 184 | -> 191 | -> 192 |
| -> 193 |
uspto searches
Patent Apps in 68/191Granted Patents in 68/191
Use the links above or do an advanced search in ppubs for:
(68/191.ccls. or 68/192.ccls. or 68/193.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.