Hierarchy/Derived subclasses
| 501 / 1 | -> 94 | -> 96.1 | -> 96.4 |
uspto searches
Patent Apps in 501/96.4Granted Patents in 501/96.4
Use the links above or do an advanced search in ppubs for:
(501/96.4.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.