Hierarchy/Derived subclasses
| 601 / 1 | -> 46 | -> 49 | -> 53 | -> 54 |
uspto searches
Patent Apps in 601/53Granted Patents in 601/53
Use the links above or do an advanced search in ppubs for:
(601/53.ccls. or 601/54.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.