Hierarchy/Derived subclasses
| 310 / 300 | -> 306 | -> 307 |
uspto searches
Patent Apps in 310/306Granted Patents in 310/306
Use the links above or do an advanced search in ppubs for:
(310/306.ccls. or 310/307.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.