Hierarchy/Derived subclasses
| 312 / 114 | -> 117 | -> 118 | -> 119 |
| -> 120 | |||
| -> 121 |
uspto searches
Patent Apps in 312/118Granted Patents in 312/118
Use the links above or do an advanced search in ppubs for:
(312/118.ccls. or 312/119.ccls. or 312/120.ccls. or 312/121.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.