Hierarchy/Derived subclasses
| 368 / 168 | -> 169 | -> 170 | -> 171 | |
| -> 172 | ||||
| -> 173 | -> 174 | |||
| -> 175 | -> 176 | |||
| -> 177 | ||||
| -> 178 |
uspto searches
Patent Apps in 368/169Granted Patents in 368/169
Use the links above or do an advanced search in ppubs for:
(368/169.ccls. or 368/170.ccls. or 368/171.ccls. or 368/172.ccls. or 368/173.ccls. or 368/174.ccls. or 368/175.ccls. or 368/176.ccls. or 368/177.ccls. or 368/178.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.