Hierarchy/Derived subclasses
157 / 1.1 | -> 1.35 | -> 1.36 | -> 1.38 | -> 1.39 | -> 1.4 |
-> 1.41 |
uspto searches
Patent Apps in 157/1.38Granted Patents in 157/1.38
Use the links above or do an advanced search in ppubs for:
(157/1.38.ccls. or 157/1.39.ccls. or 157/1.4.ccls. or 157/1.41.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.