Hierarchy/Derived subclasses
| 449 / 50 | -> 57 | -> 58 | -> 59 |
uspto searches
Patent Apps in 449/59Granted Patents in 449/59
Use the links above or do an advanced search in ppubs for:
(449/59.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.