Hierarchy/Derived subclasses
| 292 / 2 | -> 137 | -> 156 | -> 157 | -> 158 |
| -> 159 | ||||
| -> 160 | ||||
| -> 161 | ||||
| -> 162 |
uspto searches
Patent Apps in 292/156Granted Patents in 292/156
Use the links above or do an advanced search in ppubs for:
(292/156.ccls. or 292/157.ccls. or 292/158.ccls. or 292/159.ccls. or 292/160.ccls. or 292/161.ccls. or 292/162.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.