Hierarchy/Derived subclasses
429 / 400 | -> 472 | -> 474 | -> 475 |
uspto searches
Patent Apps in 429/475Granted Patents in 429/475
Use the links above or do an advanced search in ppubs for:
(429/475.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.