Hierarchy/Derived subclasses
137 / 38 | -> 39 | |
-> 40 | -> 41 | |
-> 42 | ||
-> 43 | ||
-> 44 | ||
-> 45 | -> 46 |
uspto searches
Patent Apps in 137/38Granted Patents in 137/38
Use the links above or do an advanced search in ppubs for:
(137/38.ccls. or 137/39.ccls. or 137/40.ccls. or 137/41.ccls. or 137/42.ccls. or 137/43.ccls. or 137/44.ccls. or 137/45.ccls. or 137/46.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.