Hierarchy/Derived subclasses
| 70 / 431 | -> 447 | -> 456r | -> 457 |
| -> 458 | |||
| -> 459 | |||
| -> 456b |
uspto searches
Patent Apps in 70/456RGranted Patents in 70/456R
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.