Hierarchy/Derived subclasses
| 236 / 67 | -> 99r | -> 100 |
| -> 99a | ||
| -> 99b | ||
| -> 99c | ||
| -> 99d | ||
| -> 99e | ||
| -> 99f | ||
| -> 99g | ||
| -> 99h | ||
| -> 99k | ||
| -> 99j |
uspto searches
Patent Apps in 236/99rGranted Patents in 236/99r
Use the links above or do an advanced search in ppubs for:
(236/99r.ccls. or 236/100.ccls. or 236/99a.ccls. or 236/99b.ccls. or 236/99c.ccls. or 236/99d.ccls. or 236/99e.ccls. or 236/99f.ccls. or 236/99g.ccls. or 236/99h.ccls. or 236/99k.ccls. or 236/99j.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.