Hierarchy/Derived subclasses
| 119 / 416 | -> 422 | -> 423 | -> 424 |
| -> 425 | |||
| -> 426 |
uspto searches
Patent Apps in 119/422Granted Patents in 119/422
Use the links above or do an advanced search in ppubs for:
(119/422.ccls. or 119/423.ccls. or 119/424.ccls. or 119/425.ccls. or 119/426.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.