Hierarchy/Derived subclasses
| 194 / 302 | -> 339 | -> 340 |
| -> 341 |
uspto searches
Patent Apps in 194/339Granted Patents in 194/339
Use the links above or do an advanced search in ppubs for:
(194/339.ccls. or 194/340.ccls. or 194/341.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.