Hierarchy/Derived subclasses
| 436 / 73 | -> 76 | -> 77 |
uspto searches
Patent Apps in 436/77Granted Patents in 436/77
Use the links above or do an advanced search in ppubs for:
(436/77.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.