Hierarchy/Derived subclasses
| 200 / 19.01 | -> 19.39 | -> 19.4 |
uspto searches
Patent Apps in 200/19.39Granted Patents in 200/19.39
Use the links above or do an advanced search in ppubs for:
(200/19.39.ccls. or 200/19.4.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.