Hierarchy/Derived subclasses
455 / 403 | -> 422.1 | -> 427 | -> 428 |
-> 429 | |||
-> 430 |
uspto searches
Patent Apps in 455/427Granted Patents in 455/427
Use the links above or do an advanced search in ppubs for:
(455/427.ccls. or 455/428.ccls. or 455/429.ccls. or 455/430.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.