Hierarchy/Derived subclasses
224 / 101 | -> 191 | -> 660 | -> 676 | -> 678 | -> 679 |
uspto searches
Patent Apps in 224/678Granted Patents in 224/678
Use the links above or do an advanced search in ppubs for:
(224/678.ccls. or 224/679.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.