Hierarchy/Derived subclasses
| 49 / 29 | -> 30 |
uspto searches
Patent Apps in 49/29Granted Patents in 49/29
Use the links above or do an advanced search in ppubs for:
(49/29.ccls. or 49/30.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.