Hierarchy/Derived subclasses
177 / 180 | -> 181 | -> 182 |
uspto searches
Patent Apps in 177/180Granted Patents in 177/180
Use the links above or do an advanced search in ppubs for:
(177/180.ccls. or 177/181.ccls. or 177/182.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.