Hierarchy/Derived subclasses
| 434 / 156 | -> 167 | -> 168 | ||
| -> 169 | ||||
| -> 170 | ||||
| -> 171 | ||||
| -> 172 | -> 173 | |||
| -> 174 | ||||
| -> 175 | ||||
| -> 176 | ||||
| -> 177 | ||||
| -> 178 | -> 179 | -> 180 | ||
| -> 181 | ||||
| -> 182 | ||||
| -> 183 | ||||
| -> 184 |
uspto searches
Patent Apps in 434/167Granted Patents in 434/167
Use the links above or do an advanced search in ppubs for:
(434/167.ccls. or 434/168.ccls. or 434/169.ccls. or 434/170.ccls. or 434/171.ccls. or 434/172.ccls. or 434/173.ccls. or 434/174.ccls. or 434/175.ccls. or 434/176.ccls. or 434/177.ccls. or 434/178.ccls. or 434/179.ccls. or 434/180.ccls. or 434/181.ccls. or 434/182.ccls. or 434/183.ccls. or 434/184.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.