Hierarchy/Derived subclasses
| 2 / 243.1 | -> 271 |
uspto searches
Patent Apps in 2/271Granted Patents in 2/271
Use the links above or do an advanced search in ppubs for:
(2/271.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.