Hierarchy/Derived subclasses
| 404 / 83 | -> 84.05 | -> 84.1 | -> 84.2 |
| -> 84.5 | |||
| -> 84.8 |
uspto searches
Patent Apps in 404/84.1Granted Patents in 404/84.1
Use the links above or do an advanced search in ppubs for:
(404/84.1.ccls. or 404/84.2.ccls. or 404/84.5.ccls. or 404/84.8.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.