Hierarchy/Derived subclasses
70 / 14 | -> 20 | -> 22 | -> 24 | -> 25 | -> 26 |
-> 27 | -> 28 | ||||
-> 29 |
uspto searches
Patent Apps in 70/24Granted Patents in 70/24
Use the links above or do an advanced search in ppubs for:
(70/24.ccls. or 70/25.ccls. or 70/26.ccls. or 70/27.ccls. or 70/28.ccls. or 70/29.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.