Hierarchy/Derived subclasses
66 / 7 | -> 82r | -> 83 | -> 84r | -> 85r | -> 85a |
uspto searches
Patent Apps in 66/85aGranted Patents in 66/85a
Use the links above or do an advanced search in ppubs for:
(66/85a.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.