Hierarchy/Derived subclasses
226 / 168 | -> s | -> 190 | -> 191 | -> 192 |
uspto searches
Patent Apps in 226/191Granted Patents in 226/191
Use the links above or do an advanced search in ppubs for:
(226/191.ccls. or 226/192.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.