Hierarchy/Derived subclasses
277 / 345 | -> 500 | -> 549 | -> 562 | -> 563 | |
-> 564 | |||||
-> 565 | -> 566 | ||||
-> 567 | |||||
-> 568 |
uspto searches
Patent Apps in 277/562Granted Patents in 277/562
Use the links above or do an advanced search in ppubs for:
(277/562.ccls. or 277/563.ccls. or 277/564.ccls. or 277/565.ccls. or 277/566.ccls. or 277/567.ccls. or 277/568.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.