Hierarchy/Derived subclasses
65 / 376 | -> 442 |
uspto searches
Patent Apps in 65/442Granted Patents in 65/442
Use the links above or do an advanced search in ppubs for:
(65/442.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.