Hierarchy/Derived subclasses
| 203 / 28 | -> 29 | -> 34 | -> 35 |
uspto searches
Patent Apps in 203/34Granted Patents in 203/34
Use the links above or do an advanced search in ppubs for:
(203/34.ccls. or 203/35.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.