Hierarchy/Derived subclasses
164 / 159 | -> 161 | -> 164 |
uspto searches
Patent Apps in 164/164Granted Patents in 164/164
Use the links above or do an advanced search in ppubs for:
(164/164.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.