Hierarchy/Derived subclasses
| 368 / 155 | -> 156 | -> 157 | -> 158 |
| -> 159 |
uspto searches
Patent Apps in 368/156Granted Patents in 368/156
Use the links above or do an advanced search in ppubs for:
(368/156.ccls. or 368/157.ccls. or 368/158.ccls. or 368/159.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.