Hierarchy/Derived subclasses
| 303 / 5 | -> 6.01 | -> 7 | -> 8 |
uspto searches
Patent Apps in 303/7Granted Patents in 303/7
Use the links above or do an advanced search in ppubs for:
(303/7.ccls. or 303/8.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.