Hierarchy/Derived subclasses
414 / 137.1 | -> 139.4 | -> 140.8 | -> 140.9 | -> 141.1 |
-> 141.2 |
uspto searches
Patent Apps in 414/140.8Granted Patents in 414/140.8
Use the links above or do an advanced search in ppubs for:
(414/140.8.ccls. or 414/140.9.ccls. or 414/141.1.ccls. or 414/141.2.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.