Hierarchy/Derived subclasses
| 63 / 3 | -> 3.1 | -> 3.2 |
uspto searches
Patent Apps in 63/3.2Granted Patents in 63/3.2
Use the links above or do an advanced search in ppubs for:
(63/3.2.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.