Hierarchy/Derived subclasses
D19 / 101 | -> 115 | -> 170 | -> 171 | -> 172 |
-> 173 | ||||
-> 174 | ||||
-> 175 | ||||
-> 176 |
uspto searches
Patent Apps in D19/170Granted Patents in D19/170
Use the links above or do an advanced search in ppubs for:
(D19/170.ccls. or D19/171.ccls. or D19/172.ccls. or D19/173.ccls. or D19/174.ccls. or D19/175.ccls. or D19/176.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.