Hierarchy/Derived subclasses
| 472 / 1 | -> 29 | -> 30 | |
| -> 31 | |||
| -> 32 | -> 33 | ||
| -> 34 | |||
| -> 35 | |||
| -> 36 | -> 37 | ||
| -> 38 | |||
| -> 39 | |||
| -> 40 | -> 41 | ||
| -> 42 |
uspto searches
Patent Apps in 472/29Granted Patents in 472/29
Use the links above or do an advanced search in ppubs for:
(472/29.ccls. or 472/30.ccls. or 472/31.ccls. or 472/32.ccls. or 472/33.ccls. or 472/34.ccls. or 472/35.ccls. or 472/36.ccls. or 472/37.ccls. or 472/38.ccls. or 472/39.ccls. or 472/40.ccls. or 472/41.ccls. or 472/42.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.