Hierarchy/Derived subclasses
| 347 / 1 | -> 20 | -> 22 | -> 23 | |
| -> 24 | ||||
| -> 25 | ||||
| -> 26 | ||||
| -> 27 | ||||
| -> 28 | ||||
| -> 29 | -> 30 | |||
| -> 31 | ||||
| -> 32 | ||||
| -> 33 | ||||
| -> 34 | ||||
| -> 35 | ||||
| -> 36 |
uspto searches
Patent Apps in 347/22Granted Patents in 347/22
Use the links above or do an advanced search in ppubs for:
(347/22.ccls. or 347/23.ccls. or 347/24.ccls. or 347/25.ccls. or 347/26.ccls. or 347/27.ccls. or 347/28.ccls. or 347/29.ccls. or 347/30.ccls. or 347/31.ccls. or 347/32.ccls. or 347/33.ccls. or 347/34.ccls. or 347/35.ccls. or 347/36.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.