Hierarchy/Derived subclasses
| 415 / 140 | -> 141 |
uspto searches
Patent Apps in 415/140Granted Patents in 415/140
Use the links above or do an advanced search in ppubs for:
(415/140.ccls. or 415/141.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.