Hierarchy/Derived subclasses
| 137 / 47 | -> 53 | -> 58 |
uspto searches
Patent Apps in 137/58Granted Patents in 137/58
Use the links above or do an advanced search in ppubs for:
(137/58.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.