Hierarchy/Derived subclasses
| 47 / 50 | -> 51 | |
| -> 52 | -> 53 | |
| -> 54 |
uspto searches
Patent Apps in 47/50Granted Patents in 47/50
Use the links above or do an advanced search in ppubs for:
(47/50.ccls. or 47/51.ccls. or 47/52.ccls. or 47/53.ccls. or 47/54.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.