Hierarchy/Derived subclasses
| 406 / 51 | -> 77 | -> 78 | |
| -> 79 | -> 80 | ||
| -> 81 | |||
| -> 82 |
uspto searches
Patent Apps in 406/77Granted Patents in 406/77
Use the links above or do an advanced search in ppubs for:
(406/77.ccls. or 406/78.ccls. or 406/79.ccls. or 406/80.ccls. or 406/81.ccls. or 406/82.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.