Hierarchy/Derived subclasses
175 / 263 | -> 274 | -> 275 | -> 276 | |
-> 277 | -> 278 |
uspto searches
Patent Apps in 175/275Granted Patents in 175/275
Use the links above or do an advanced search in ppubs for:
(175/275.ccls. or 175/276.ccls. or 175/277.ccls. or 175/278.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.