Hierarchy/Derived subclasses
| 417 / 65 | -> 66 | -> 71 | -> 72 |
uspto searches
Patent Apps in 417/71Granted Patents in 417/71
Use the links above or do an advanced search in ppubs for:
(417/71.ccls. or 417/72.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.