Hierarchy/Derived subclasses
| 398 / 9 | -> 17 | -> 18 | |
| -> 19 | |||
| -> 20 | -> 21 | ||
| -> 22 | |||
| -> 23 | |||
| -> 24 |
uspto searches
Patent Apps in 398/17Granted Patents in 398/17
Use the links above or do an advanced search in ppubs for:
(398/17.ccls. or 398/18.ccls. or 398/19.ccls. or 398/20.ccls. or 398/21.ccls. or 398/22.ccls. or 398/23.ccls. or 398/24.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.