Hierarchy/Derived subclasses
345 / 418 | -> 619 | -> 620 | -> 621 | -> 622 |
-> 623 | ||||
-> 624 |
uspto searches
Patent Apps in 345/621Granted Patents in 345/621
Use the links above or do an advanced search in ppubs for:
(345/621.ccls. or 345/622.ccls. or 345/623.ccls. or 345/624.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.