Hierarchy/Derived subclasses
| 188 / 67 | -> 71.1 | -> 73.31 | -> 73.32 | -> 73.33 | -> 73.34 |
uspto searches
Patent Apps in 188/73.32Granted Patents in 188/73.32
Use the links above or do an advanced search in ppubs for:
(188/73.32.ccls. or 188/73.33.ccls. or 188/73.34.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.