Hierarchy/Derived subclasses
800 / 295 | -> 298 | -> 320 | -> 320.3 |
uspto searches
Patent Apps in 800/320.3Granted Patents in 800/320.3
Use the links above or do an advanced search in ppubs for:
(800/320.3.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.