Hierarchy/Derived subclasses
213 / 75r | -> 77 | -> 100r | -> 104 | -> 109 | -> 115 | -> 119 | -> 122 | -> 123 |
uspto searches
Patent Apps in 213/122Granted Patents in 213/122
Use the links above or do an advanced search in ppubs for:
(213/122.ccls. or 213/123.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.