Hierarchy/Derived subclasses
| 236 / 67 | -> 74r | -> 78r | -> 78a |
| -> 78b | |||
| -> 78c | |||
| -> 78d |
uspto searches
Patent Apps in 236/78RGranted Patents in 236/78R
Use the links above or do an advanced search in ppubs for:
()
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.