Hierarchy/Derived subclasses
| D11 / 131 | -> 157 | -> 163 |
uspto searches
Patent Apps in D11/163Granted Patents in D11/163
Use the links above or do an advanced search in ppubs for:
(D11/163.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.