Hierarchy/Derived subclasses
| 336 / 115 | -> 117 | -> 118 | |
| -> 119 | -> 120 |
uspto searches
Patent Apps in 336/117Granted Patents in 336/117
Use the links above or do an advanced search in ppubs for:
(336/117.ccls. or 336/118.ccls. or 336/119.ccls. or 336/120.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.