Hierarchy/Derived subclasses
337 / 14 | -> 123 | -> 126 | -> 131 | -> 135 | -> 136 |
uspto searches
Patent Apps in 337/136Granted Patents in 337/136
Use the links above or do an advanced search in ppubs for:
(337/136.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.