Hierarchy/Derived subclasses
52 / 64 | -> 65 |
-> 66 | |
-> 67 | |
-> 68 | |
-> 69 | |
-> 70 | |
-> 71 | |
-> 72 |
uspto searches
Patent Apps in 52/64Granted Patents in 52/64
Use the links above or do an advanced search in ppubs for:
(52/64.ccls. or 52/65.ccls. or 52/66.ccls. or 52/67.ccls. or 52/68.ccls. or 52/69.ccls. or 52/70.ccls. or 52/71.ccls. or 52/72.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.