Hierarchy/Derived subclasses
200 / 33r | -> 35r | -> 38r | -> 38d | -> 38da |
-> 38db | ||||
-> 38dc |
uspto searches
Patent Apps in 200/38dGranted Patents in 200/38d
Use the links above or do an advanced search in ppubs for:
(200/38d.ccls. or 200/38da.ccls. or 200/38db.ccls. or 200/38dc.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.