Hierarchy/Derived subclasses
345 / 1.1 | -> 2.1 | -> 2.3 |
uspto searches
Patent Apps in 345/2.3Granted Patents in 345/2.3
Use the links above or do an advanced search in ppubs for:
(345/2.3.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.