Hierarchy/Derived subclasses
| 203 / 88 |
uspto searches
Patent Apps in 203/88Granted Patents in 203/88
Use the links above or do an advanced search in ppubs for:
(203/88.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.