Hierarchy/Derived subclasses
438 / 142 | -> 149 | -> 150 |
uspto searches
Patent Apps in 438/150Granted Patents in 438/150
Use the links above or do an advanced search in ppubs for:
(438/150.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.