Hierarchy/Derived subclasses
| 473 / 54 | -> 64 | -> 67 | -> 69 | -> 70 | -> 71 |
uspto searches
Patent Apps in 473/70Granted Patents in 473/70
Use the links above or do an advanced search in ppubs for:
(473/70.ccls. or 473/71.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.