Hierarchy/Derived subclasses
166 / 75.11 | -> 88.1 | -> 89.1 | -> 89.2 |
-> 89.3 |
uspto searches
Patent Apps in 166/89.1Granted Patents in 166/89.1
Use the links above or do an advanced search in ppubs for:
(166/89.1.ccls. or 166/89.2.ccls. or 166/89.3.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.