Hierarchy/Derived subclasses
222 / 591 | -> 592 | -> 593 |
uspto searches
Patent Apps in 222/592Granted Patents in 222/592
Use the links above or do an advanced search in ppubs for:
(222/592.ccls. or 222/593.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.