Hierarchy/Derived subclasses
| 19 / 1 | -> 5r | -> 11 | -> 12 | -> 13 | -> 14 |
| -> 15 | -> 16 |
uspto searches
Patent Apps in 19/12Granted Patents in 19/12
Use the links above or do an advanced search in ppubs for:
(19/12.ccls. or 19/13.ccls. or 19/14.ccls. or 19/15.ccls. or 19/16.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.