Hierarchy/Derived subclasses
| 332 / 149 | -> 163 | -> 164 | |
| -> 165 | -> 166 |
uspto searches
Patent Apps in 332/163Granted Patents in 332/163
Use the links above or do an advanced search in ppubs for:
(332/163.ccls. or 332/164.ccls. or 332/165.ccls. or 332/166.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.