Hierarchy/Derived subclasses
701 / 1 | -> 29.1 | -> 33.7 | -> 33.9 | -> 34.1 |
uspto searches
Patent Apps in 701/33.9Granted Patents in 701/33.9
Use the links above or do an advanced search in ppubs for:
(701/33.9.ccls. or 701/34.1.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.