Hierarchy/Derived subclasses
| 226 / 10 | -> 15 | -> 16 | ||
| -> 17 | ||||
| -> 18 | -> 19 | -> 20 | ||
| -> 21 | -> 22 | |||
| -> 23 |
uspto searches
Patent Apps in 226/15Granted Patents in 226/15
Use the links above or do an advanced search in ppubs for:
(226/15.ccls. or 226/16.ccls. or 226/17.ccls. or 226/18.ccls. or 226/19.ccls. or 226/20.ccls. or 226/21.ccls. or 226/22.ccls. or 226/23.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.