Hierarchy/Derived subclasses
429 / 400 | -> 498 | -> 499 | -> 500 |
-> 501 |
uspto searches
Patent Apps in 429/498Granted Patents in 429/498
Use the links above or do an advanced search in ppubs for:
(429/498.ccls. or 429/499.ccls. or 429/500.ccls. or 429/501.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.