Hierarchy/Derived subclasses
232 / 1r | -> 1a |
-> 1b | |
-> 1c | |
-> 1d | |
-> 1e |
uspto searches
Patent Apps in 232/1rGranted Patents in 232/1r
Use the links above or do an advanced search in ppubs for:
(232/1r.ccls. or 232/1a.ccls. or 232/1b.ccls. or 232/1c.ccls. or 232/1d.ccls. or 232/1e.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.