Hierarchy/Derived subclasses
266 / 168 | -> 171 | -> 176 | -> 177 | -> 178 | -> 179 |
-> 180 | |||||
-> 181 |
uspto searches
Patent Apps in 266/177Granted Patents in 266/177
Use the links above or do an advanced search in ppubs for:
(266/177.ccls. or 266/178.ccls. or 266/179.ccls. or 266/180.ccls. or 266/181.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.