Hierarchy/Derived subclasses
| 351 / 41 | -> 111 | -> 112 |
| -> 113 | ||
| -> 114 | ||
| -> 115 | ||
| -> 116 | ||
| -> 117 | ||
| -> 118 | ||
| -> 119 | ||
| -> 120 | ||
| -> 121 | ||
| -> 122 | ||
| -> 123 |
uspto searches
Patent Apps in 351/111Granted Patents in 351/111
Use the links above or do an advanced search in ppubs for:
(351/111.ccls. or 351/112.ccls. or 351/113.ccls. or 351/114.ccls. or 351/115.ccls. or 351/116.ccls. or 351/117.ccls. or 351/118.ccls. or 351/119.ccls. or 351/120.ccls. or 351/121.ccls. or 351/122.ccls. or 351/123.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.