Hierarchy/Derived subclasses
418 / 33 | -> 35 | -> 36 |
-> 37 | ||
-> 38 |
uspto searches
Patent Apps in 418/35Granted Patents in 418/35
Use the links above or do an advanced search in ppubs for:
(418/35.ccls. or 418/36.ccls. or 418/37.ccls. or 418/38.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.