Hierarchy/Derived subclasses
70 / 266 | -> 286 | -> 333r | -> 334 |
-> 333a |
uspto searches
Patent Apps in 70/333rGranted Patents in 70/333r
Use the links above or do an advanced search in ppubs for:
(70/333r.ccls. or 70/334.ccls. or 70/333a.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.