Hierarchy/Derived subclasses
| 203 / 6 | -> 7 | |
| -> 8 | -> 9 |
uspto searches
Patent Apps in 203/6Granted Patents in 203/6
Use the links above or do an advanced search in ppubs for:
(203/6.ccls. or 203/7.ccls. or 203/8.ccls. or 203/9.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.