Hierarchy/Derived subclasses
| 188 / 67 | -> 74 | -> 78 | -> 325 | -> 331 | -> 333 |
uspto searches
Patent Apps in 188/333Granted Patents in 188/333
Use the links above or do an advanced search in ppubs for:
(188/333.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.