Hierarchy/Derived subclasses
D14 / 496 | -> 140 | -> 140.1 | -> 140.4 |
uspto searches
Patent Apps in D14/140.4Granted Patents in D14/140.4
Use the links above or do an advanced search in ppubs for:
(D14/140.4.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.