Hierarchy/Derived subclasses
| 66 / 169r | -> 170 | -> 171 | -> 177 | -> 178r | -> 179 | ||
| -> 180 | -> 181 | ||||||
| -> 182 | |||||||
| -> 183 | -> 184 | ||||||
| -> 185 | -> 186 | -> 187 | |||||
| -> 188 | |||||||
| -> 178a |
uspto searches
Patent Apps in 66/178rGranted Patents in 66/178r
Use the links above or do an advanced search in ppubs for:
(66/178r.ccls. or 66/179.ccls. or 66/180.ccls. or 66/181.ccls. or 66/182.ccls. or 66/183.ccls. or 66/184.ccls. or 66/185.ccls. or 66/186.ccls. or 66/187.ccls. or 66/188.ccls. or 66/178a.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.