Hierarchy/Derived subclasses
| 193 / 2r | -> 25r | -> 25a |
| -> 25e | ||
| -> 25ac | ||
| -> 25s | ||
| -> 25ft | ||
| -> 25b | ||
| -> 25c |
uspto searches
Patent Apps in 193/25RGranted Patents in 193/25R
Use the links above or do an advanced search in ppubs for:
()
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.