Hierarchy/Derived subclasses
270 / 1.01 | -> 18 | -> 19 |
uspto searches
Patent Apps in 270/18Granted Patents in 270/18
Use the links above or do an advanced search in ppubs for:
(270/18.ccls. or 270/19.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.