Hierarchy/Derived subclasses
| 2 / 171 | -> 227 | -> 228 | |
| -> 229 | |||
| -> 230 | |||
| -> 231 | -> 232 | ||
| -> 233 | |||
| -> 234 | |||
| -> 235 | |||
| -> 236 | -> 237 |
uspto searches
Patent Apps in 2/227Granted Patents in 2/227
Use the links above or do an advanced search in ppubs for:
(2/227.ccls. or 2/228.ccls. or 2/229.ccls. or 2/230.ccls. or 2/231.ccls. or 2/232.ccls. or 2/233.ccls. or 2/234.ccls. or 2/235.ccls. or 2/236.ccls. or 2/237.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.