Hierarchy/Derived subclasses
| 404 / 83 | -> 122 | -> 123 |
| -> 124 | ||
| -> 125 | ||
| -> 126 | ||
| -> 127 | ||
| -> 128 | ||
| -> 129 | ||
| -> 130 | ||
| -> 131 | ||
| -> 132 |
uspto searches
Patent Apps in 404/122Granted Patents in 404/122
Use the links above or do an advanced search in ppubs for:
(404/122.ccls. or 404/123.ccls. or 404/124.ccls. or 404/125.ccls. or 404/126.ccls. or 404/127.ccls. or 404/128.ccls. or 404/129.ccls. or 404/130.ccls. or 404/131.ccls. or 404/132.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.