Hierarchy/Derived subclasses
16 / 87r | -> 87.2 | -> 87.4r | -> 87.6r | -> 87.6w |
-> 87.4w |
uspto searches
Patent Apps in 16/87.4rGranted Patents in 16/87.4r
Use the links above or do an advanced search in ppubs for:
(16/87.4r.ccls. or 16/87.6r.ccls. or 16/87.6w.ccls. or 16/87.4w.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.