Hierarchy/Derived subclasses
307 / 401 | -> 402 | -> 403 |
-> 404 | ||
-> 405 |
uspto searches
Patent Apps in 307/402Granted Patents in 307/402
Use the links above or do an advanced search in ppubs for:
(307/402.ccls. or 307/403.ccls. or 307/404.ccls. or 307/405.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.