Hierarchy/Derived subclasses
406 / 154 | -> 157 | -> 158 | ||
-> 159 | -> 160 | -> 161 | ||
-> 162 | ||||
-> 163 |
uspto searches
Patent Apps in 406/157Granted Patents in 406/157
Use the links above or do an advanced search in ppubs for:
(406/157.ccls. or 406/158.ccls. or 406/159.ccls. or 406/160.ccls. or 406/161.ccls. or 406/162.ccls. or 406/163.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.