Hierarchy/Derived subclasses
| 172 / 133 | -> 184 | -> 185 |
| -> 186 | ||
| -> 187 |
uspto searches
Patent Apps in 172/184Granted Patents in 172/184
Use the links above or do an advanced search in ppubs for:
(172/184.ccls. or 172/185.ccls. or 172/186.ccls. or 172/187.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.