Hierarchy/Derived subclasses
226 / 168 | -> s | -> 181 | -> 184 |
uspto searches
Patent Apps in 226/184Granted Patents in 226/184
Use the links above or do an advanced search in ppubs for:
(226/184.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.