Hierarchy/Derived subclasses
411 / 190 | -> 321 | -> 322 |
-> 323 |
uspto searches
Patent Apps in 411/321Granted Patents in 411/321
Use the links above or do an advanced search in ppubs for:
(411/321.ccls. or 411/322.ccls. or 411/323.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.