Hierarchy/Derived subclasses
| 177 / 25.11 | -> 31 | -> 32 | -> 33 |
uspto searches
Patent Apps in 177/32Granted Patents in 177/32
Use the links above or do an advanced search in ppubs for:
(177/32.ccls. or 177/33.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.