Hierarchy/Derived subclasses
213 / 7 | -> 62r | -> 64 | -> 67r | -> 69 | -> 70 | -> 71 |
-> 72 |
uspto searches
Patent Apps in 213/69Granted Patents in 213/69
Use the links above or do an advanced search in ppubs for:
(213/69.ccls. or 213/70.ccls. or 213/71.ccls. or 213/72.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.