Hierarchy/Derived subclasses
| 47 / 20.1 | -> 21.1 | |||
| -> 22.1 | ||||
| -> 23.1 | -> 23.2 | -> 23.3 | ||
| -> 24.1 | ||||
| -> 25.1 | ||||
| -> 32.1 | ||||
| -> 29.1 | -> 29.2 | -> 29.3 | -> s | |
| -> 29.4 | ||||
| -> 29.5 | ||||
| -> 29.6 | ||||
| -> 29.7 | ||||
| -> 30 | ||||
| -> 31 | ||||
| -> 31.1 | ||||
| -> 32 | ||||
| -> 32.2 | ||||
| -> 32.3 |
uspto searches
Patent Apps in 47/20.1Granted Patents in 47/20.1
Use the links above or do an advanced search in ppubs for:
(47/20.1.ccls. or 47/21.1.ccls. or 47/22.1.ccls. or 47/23.1.ccls. or 47/23.2.ccls. or 47/23.3.ccls. or 47/24.1.ccls. or 47/25.1.ccls. or 47/32.1.ccls. or 47/29.1.ccls. or 47/29.2.ccls. or 47/29.3.ccls. or 47/s.ccls. or 47/29.4.ccls. or 47/29.5.ccls. or 47/29.6.ccls. or 47/29.7.ccls. or 47/30.ccls. or 47/31.ccls. or 47/31.1.ccls. or 47/32.ccls. or 47/32.2.ccls. or 47/32.3.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.