Hierarchy/Derived subclasses
455 / 39 | -> 500 | -> 507 | -> 517 | -> 522 |
uspto searches
Patent Apps in 455/522Granted Patents in 455/522
Use the links above or do an advanced search in ppubs for:
(455/522.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.