Hierarchy/Derived subclasses
| 217 / 5 | -> 56 | -> 57 | -> 58 | ||
| -> 59 | |||||
| -> 60r | -> 61 | ||||
| -> 60b | -> 60c | ||||
| -> 60d | |||||
| -> 60e | |||||
| -> 60f | |||||
| -> 60g | |||||
| -> 62 | -> 63 |
uspto searches
Patent Apps in 217/56Granted Patents in 217/56
Use the links above or do an advanced search in ppubs for:
(217/56.ccls. or 217/57.ccls. or 217/58.ccls. or 217/59.ccls. or 217/60r.ccls. or 217/61.ccls. or 217/60b.ccls. or 217/60c.ccls. or 217/60d.ccls. or 217/60e.ccls. or 217/60f.ccls. or 217/60g.ccls. or 217/62.ccls. or 217/63.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.