Hierarchy/Derived subclasses
| 235 / 7r | -> 17 | -> 18 |
uspto searches
Patent Apps in 235/17Granted Patents in 235/17
Use the links above or do an advanced search in ppubs for:
(235/17.ccls. or 235/18.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.