Hierarchy/Derived subclasses
720 / 658 | -> 672 | -> 681 | -> 682 | -> 683 |
-> 684 | ||||
-> 685 |
uspto searches
Patent Apps in 720/682Granted Patents in 720/682
Use the links above or do an advanced search in ppubs for:
(720/682.ccls. or 720/683.ccls. or 720/684.ccls. or 720/685.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.