Hierarchy/Derived subclasses
| 368 / 276 | -> 286 | -> 288 | -> 289 | -> 290 |
uspto searches
Patent Apps in 368/288Granted Patents in 368/288
Use the links above or do an advanced search in ppubs for:
(368/288.ccls. or 368/289.ccls. or 368/290.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.