Hierarchy/Derived subclasses
19 / 65r | -> 236 | -> 239 | -> 240 | -> 241 |
uspto searches
Patent Apps in 19/240Granted Patents in 19/240
Use the links above or do an advanced search in ppubs for:
(19/240.ccls. or 19/241.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.