Hierarchy/Derived subclasses
| 66 / 169r | -> 170 | -> 171 | -> 177 | -> 178r | -> 185 | -> 186 | -> 187 |
uspto searches
Patent Apps in 66/185Granted Patents in 66/185
Use the links above or do an advanced search in ppubs for:
(66/185.ccls. or 66/186.ccls. or 66/187.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.