Hierarchy/Derived subclasses
220 / 592.01 | -> 592.2 | -> 592.27 |
uspto searches
Patent Apps in 220/592.27Granted Patents in 220/592.27
Use the links above or do an advanced search in ppubs for:
(220/592.27.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.