Hierarchy/Derived subclasses
| 252 / 62.9r | -> 62.9pz |
uspto searches
Patent Apps in 252/62.9PZGranted Patents in 252/62.9PZ
Use the links above or do an advanced search in ppubs for:
()
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.