Hierarchy/Derived subclasses
477 / 34 | -> 70 | -> 90 | -> 91 |
uspto searches
Patent Apps in 477/91Granted Patents in 477/91
Use the links above or do an advanced search in ppubs for:
(477/91.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.