Hierarchy/Derived subclasses
334 / 65 | -> 66 | -> 67 |
-> 68 | ||
-> 69 | -> 70 |
uspto searches
Patent Apps in 334/65Granted Patents in 334/65
Use the links above or do an advanced search in ppubs for:
(334/65.ccls. or 334/66.ccls. or 334/67.ccls. or 334/68.ccls. or 334/69.ccls. or 334/70.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.