Hierarchy/Derived subclasses
19 / 1 | -> 5r | -> 24 | -> 25 | |
-> 26 | -> 27 | |||
-> 28 | ||||
-> 29 | ||||
-> 30 | ||||
-> 31 | -> 32 | |||
-> 33 |
uspto searches
Patent Apps in 19/24Granted Patents in 19/24
Use the links above or do an advanced search in ppubs for:
(19/24.ccls. or 19/25.ccls. or 19/26.ccls. or 19/27.ccls. or 19/28.ccls. or 19/29.ccls. or 19/30.ccls. or 19/31.ccls. or 19/32.ccls. or 19/33.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.