Hierarchy/Derived subclasses
D6 / 329 | -> 641 | -> 653 | -> 653.22 |
uspto searches
Patent Apps in D6/653.22Granted Patents in D6/653.22
Use the links above or do an advanced search in ppubs for:
(D6/653.22.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.