Hierarchy/Derived subclasses
| 19 / 65r | -> 115r | -> 215 | -> 229 | -> 231 | -> 232 |
uspto searches
Patent Apps in 19/231Granted Patents in 19/231
Use the links above or do an advanced search in ppubs for:
(19/231.ccls. or 19/232.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.