Hierarchy/Derived subclasses
| 68 / 3r | -> 147 | -> 175 | -> 177 | -> 178 |
uspto searches
Patent Apps in 68/177Granted Patents in 68/177
Use the links above or do an advanced search in ppubs for:
(68/177.ccls. or 68/178.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.