Hierarchy/Derived subclasses
| 347 / 1 | -> 20 | -> 54 | -> 55 | |||
| -> 56 | -> 57 | -> 58 | -> 59 | |||
| -> 60 | ||||||
| -> 61 | -> 62 | |||||
| -> 63 | -> 64 | |||||
| -> 65 | ||||||
| -> 66 | ||||||
| -> 67 | ||||||
| -> 68 | -> 69 | |||||
| -> 70 | ||||||
| -> 71 | -> 72 |
uspto searches
Patent Apps in 347/54Granted Patents in 347/54
Use the links above or do an advanced search in ppubs for:
(347/54.ccls. or 347/55.ccls. or 347/56.ccls. or 347/57.ccls. or 347/58.ccls. or 347/59.ccls. or 347/60.ccls. or 347/61.ccls. or 347/62.ccls. or 347/63.ccls. or 347/64.ccls. or 347/65.ccls. or 347/66.ccls. or 347/67.ccls. or 347/68.ccls. or 347/69.ccls. or 347/70.ccls. or 347/71.ccls. or 347/72.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.