Hierarchy/Derived subclasses
| 347 / 171 | -> 180 | -> 181 |
| -> 182 |
uspto searches
Patent Apps in 347/180Granted Patents in 347/180
Use the links above or do an advanced search in ppubs for:
(347/180.ccls. or 347/181.ccls. or 347/182.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.