Hierarchy/Derived subclasses
345 / 418 | -> 619 | -> 689 |
uspto searches
Patent Apps in 345/689Granted Patents in 345/689
Use the links above or do an advanced search in ppubs for:
(345/689.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.