Hierarchy/Derived subclasses
436 / 86 | -> 89 | -> 90 |
uspto searches
Patent Apps in 436/89Granted Patents in 436/89
Use the links above or do an advanced search in ppubs for:
(436/89.ccls. or 436/90.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.