Hierarchy/Derived subclasses
| 213 / 7 | -> 40r | -> 44 | -> 45 | -> 46r | -> 46a |
| -> 47 | -> 48 |
uspto searches
Patent Apps in 213/45Granted Patents in 213/45
Use the links above or do an advanced search in ppubs for:
(213/45.ccls. or 213/46r.ccls. or 213/46a.ccls. or 213/47.ccls. or 213/48.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.