Hierarchy/Derived subclasses
| 351 / 41 | -> 159.01 | -> 159.52 | -> 159.53 | -> 159.54 |
uspto searches
Patent Apps in 351/159.52Granted Patents in 351/159.52
Use the links above or do an advanced search in ppubs for:
(351/159.52.ccls. or 351/159.53.ccls. or 351/159.54.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.