Hierarchy/Derived subclasses
| 601 / 1 | -> 46 | -> 49 | -> 50 | ||
| -> 51 | -> 52 | ||||
| -> 53 | -> 54 | ||||
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| -> 56 | -> 57 | ||||
| -> 58 | |||||
| -> 59 | -> 60 | ||||
| -> 61 | -> 62 | ||||
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| -> 66 |
uspto searches
Patent Apps in 601/49Granted Patents in 601/49
Use the links above or do an advanced search in ppubs for:
(601/49.ccls. or 601/50.ccls. or 601/51.ccls. or 601/52.ccls. or 601/53.ccls. or 601/54.ccls. or 601/55.ccls. or 601/56.ccls. or 601/57.ccls. or 601/58.ccls. or 601/59.ccls. or 601/60.ccls. or 601/61.ccls. or 601/62.ccls. or 601/63.ccls. or 601/64.ccls. or 601/65.ccls. or 601/66.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.