Hierarchy/Derived subclasses
505 / 825 | -> 869 | -> 870 |
uspto searches
Patent Apps in 505/869Granted Patents in 505/869
Use the links above or do an advanced search in ppubs for:
(505/869.ccls. or 505/870.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.