Hierarchy/Derived subclasses
70 / 266 | -> 336 | -> 391 | -> 393 | -> 402 | -> 403 | -> 404 |
uspto searches
Patent Apps in 70/403Granted Patents in 70/403
Use the links above or do an advanced search in ppubs for:
(70/403.ccls. or 70/404.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.