Hierarchy/Derived subclasses
188 / 2r | -> 33 | -> 35 | -> 36 | -> 37 |
uspto searches
Patent Apps in 188/37Granted Patents in 188/37
Use the links above or do an advanced search in ppubs for:
(188/37.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.