Hierarchy/Derived subclasses
502 / 60 | -> 80 | -> 81 | -> 82 |
-> 83 | |||
-> 84 |
uspto searches
Patent Apps in 502/80Granted Patents in 502/80
Use the links above or do an advanced search in ppubs for:
(502/80.ccls. or 502/81.ccls. or 502/82.ccls. or 502/83.ccls. or 502/84.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.