Hierarchy/Derived subclasses
401 / 16 | -> 25 | -> 26 |
-> 27 |
uspto searches
Patent Apps in 401/25Granted Patents in 401/25
Use the links above or do an advanced search in ppubs for:
(401/25.ccls. or 401/26.ccls. or 401/27.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.