Hierarchy/Derived subclasses
| 462 / 71 | -> 72 |
uspto searches
Patent Apps in 462/72Granted Patents in 462/72
Use the links above or do an advanced search in ppubs for:
(462/72.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.