Hierarchy/Derived subclasses
347 / 171 | -> 172 | -> 174 | -> 176 | -> 177 | -> 178 |
uspto searches
Patent Apps in 347/177Granted Patents in 347/177
Use the links above or do an advanced search in ppubs for:
(347/177.ccls. or 347/178.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.