Hierarchy/Derived subclasses
| 24 / 31r | -> 33r | -> 33a |
| -> 33f | ||
| -> 33p | ||
| -> 33v | ||
| -> 33l | ||
| -> 33b | ||
| -> 33c | ||
| -> 33k | ||
| -> 33m |
uspto searches
Patent Apps in 24/33rGranted Patents in 24/33r
Use the links above or do an advanced search in ppubs for:
(24/33r.ccls. or 24/33a.ccls. or 24/33f.ccls. or 24/33p.ccls. or 24/33v.ccls. or 24/33l.ccls. or 24/33b.ccls. or 24/33c.ccls. or 24/33k.ccls. or 24/33m.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.