Hierarchy/Derived subclasses
| 70 / 57 | -> 77 | -> 91 | -> 101 | -> 141 | -> 144 | -> 145 | -> 150 | -> 151r | -> 151a |
uspto searches
Patent Apps in 70/151rGranted Patents in 70/151r
Use the links above or do an advanced search in ppubs for:
(70/151r.ccls. or 70/151a.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.