Hierarchy/Derived subclasses
| 348 / 42 | -> 51 | -> 54 | -> 55 | -> 56 |
| -> 57 | ||||
| -> 58 | ||||
| -> 59 | ||||
| -> 60 |
uspto searches
Patent Apps in 348/54Granted Patents in 348/54
Use the links above or do an advanced search in ppubs for:
(348/54.ccls. or 348/55.ccls. or 348/56.ccls. or 348/57.ccls. or 348/58.ccls. or 348/59.ccls. or 348/60.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.