Hierarchy/Derived subclasses
| 346 / 139r | -> 140.1 | |
| -> 141 | -> 142 | |
| -> 143 | ||
| -> 139a | ||
| -> 139b | ||
| -> 139c | ||
| -> 139d |
uspto searches
Patent Apps in 346/139rGranted Patents in 346/139r
Use the links above or do an advanced search in ppubs for:
(346/139r.ccls. or 346/140.1.ccls. or 346/141.ccls. or 346/142.ccls. or 346/143.ccls. or 346/139a.ccls. or 346/139b.ccls. or 346/139c.ccls. or 346/139d.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.