Hierarchy/Derived subclasses
| 55 / 467 | -> 471 |
uspto searches
Patent Apps in 55/471Granted Patents in 55/471
Use the links above or do an advanced search in ppubs for:
(55/471.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.