Hierarchy/Derived subclasses
| 193 / 2r | -> 2c |
uspto searches
Patent Apps in 193/2cGranted Patents in 193/2c
Use the links above or do an advanced search in ppubs for:
(193/2c.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.