Hierarchy/Derived subclasses
701 / 400 | -> 408 | -> 409 | -> 445 | -> 446 | -> 448 |
uspto searches
Patent Apps in 701/448Granted Patents in 701/448
Use the links above or do an advanced search in ppubs for:
(701/448.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.