Hierarchy/Derived subclasses
429 / 400 | -> 502 | -> 505 | -> 506 |
uspto searches
Patent Apps in 429/506Granted Patents in 429/506
Use the links above or do an advanced search in ppubs for:
(429/506.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.