Hierarchy/Derived subclasses
D11 / 200 | -> 208 | -> 209 |
uspto searches
Patent Apps in D11/209Granted Patents in D11/209
Use the links above or do an advanced search in ppubs for:
(D11/209.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.