Hierarchy/Derived subclasses
119 / 416 | -> 436 | -> 437 | -> 442 | -> 443 |
uspto searches
Patent Apps in 119/442Granted Patents in 119/442
Use the links above or do an advanced search in ppubs for:
(119/442.ccls. or 119/443.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.