Hierarchy/Derived subclasses
| 200 / 33r | -> 34 | |||
| -> 35r | -> 36 | -> 37r | -> 37a | |
| -> 38r | -> 38a | |||
| -> 38f | -> 38fa | |||
| -> 38fb | ||||
| -> 38b | -> 38ba | |||
| -> 38c | -> 38ca | |||
| -> 38d | -> 38da | |||
| -> 38db | ||||
| -> 38dc | ||||
| -> 38e | ||||
| -> 39r | -> 40 | |||
| -> 41 | ||||
| -> 39a | ||||
| -> 35h | ||||
| -> 35b | ||||
| -> 35eq | ||||
| -> 35a | ||||
| -> 35w | ||||
| -> 33a | ||||
| -> 33b | ||||
| -> 33c | ||||
| -> 33d |
uspto searches
Patent Apps in 200/33rGranted Patents in 200/33r
Use the links above or do an advanced search in ppubs for:
(200/33r.ccls. or 200/34.ccls. or 200/35r.ccls. or 200/36.ccls. or 200/37r.ccls. or 200/37a.ccls. or 200/38r.ccls. or 200/38a.ccls. or 200/38f.ccls. or 200/38fa.ccls. or 200/38fb.ccls. or 200/38b.ccls. or 200/38ba.ccls. or 200/38c.ccls. or 200/38ca.ccls. or 200/38d.ccls. or 200/38da.ccls. or 200/38db.ccls. or 200/38dc.ccls. or 200/38e.ccls. or 200/39r.ccls. or 200/40.ccls. or 200/41.ccls. or 200/39a.ccls. or 200/35h.ccls. or 200/35b.ccls. or 200/35eq.ccls. or 200/35a.ccls. or 200/35w.ccls. or 200/33a.ccls. or 200/33b.ccls. or 200/33c.ccls. or 200/33d.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.