Hierarchy/Derived subclasses
| 66 / 90 | -> 104 | -> 109 | -> 110 |
uspto searches
Patent Apps in 66/110Granted Patents in 66/110
Use the links above or do an advanced search in ppubs for:
(66/110.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.