Hierarchy/Derived subclasses
318 / 34 | -> 66 | -> 68 | -> 69 | -> 70 | -> 74 | -> 75 |
uspto searches
Patent Apps in 318/74Granted Patents in 318/74
Use the links above or do an advanced search in ppubs for:
(318/74.ccls. or 318/75.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.