Hierarchy/Derived subclasses
720 / 658 | -> 672 | -> 674 | -> 675 |
uspto searches
Patent Apps in 720/675Granted Patents in 720/675
Use the links above or do an advanced search in ppubs for:
(720/675.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.