Hierarchy/Derived subclasses
166 / 55 | -> 55.2 | -> 55.3 |
uspto searches
Patent Apps in 166/55.2Granted Patents in 166/55.2
Use the links above or do an advanced search in ppubs for:
(166/55.2.ccls. or 166/55.3.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.