Hierarchy/Derived subclasses
| 332 / 149 | -> 151 | -> 153 | -> 154 |
uspto searches
Patent Apps in 332/154Granted Patents in 332/154
Use the links above or do an advanced search in ppubs for:
(332/154.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.