Hierarchy/Derived subclasses
| 332 / 117 | -> 129 | -> 131 | -> 132 |
| -> 133 | |||
| -> 134 |
uspto searches
Patent Apps in 332/131Granted Patents in 332/131
Use the links above or do an advanced search in ppubs for:
(332/131.ccls. or 332/132.ccls. or 332/133.ccls. or 332/134.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.