Hierarchy/Derived subclasses
348 / 180 | -> 189 | -> 190 |
uspto searches
Patent Apps in 348/190Granted Patents in 348/190
Use the links above or do an advanced search in ppubs for:
(348/190.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.