Hierarchy/Derived subclasses
| 122 / 209.1 | -> 209.2 | ||
| -> 213 | |||
| -> 214 | -> 215 | -> 216 | |
| -> 217 | |||
| -> 218 | -> 219 | ||
| -> 220 | |||
| -> 221 | -> 222 | ||
| -> 223 | -> 224 | ||
| -> 225r | -> 226 | -> 227 | |
| -> 228 | |||
| -> 229 | |||
| -> 225a | |||
| -> 225b | |||
| -> 225f | |||
| -> 230 | |||
| -> 212.1 | -> 212.2 | ||
| -> 211 | |||
| -> 210 | |||
| -> 232 | |||
| -> 231 | |||
| -> 233 | |||
| -> 234 |
uspto searches
Patent Apps in 122/209.1Granted Patents in 122/209.1
Use the links above or do an advanced search in ppubs for:
(122/209.1.ccls. or 122/209.2.ccls. or 122/213.ccls. or 122/214.ccls. or 122/215.ccls. or 122/216.ccls. or 122/217.ccls. or 122/218.ccls. or 122/219.ccls. or 122/220.ccls. or 122/221.ccls. or 122/222.ccls. or 122/223.ccls. or 122/224.ccls. or 122/225r.ccls. or 122/226.ccls. or 122/227.ccls. or 122/228.ccls. or 122/229.ccls. or 122/225a.ccls. or 122/225b.ccls. or 122/225f.ccls. or 122/230.ccls. or 122/212.1.ccls. or 122/212.2.ccls. or 122/211.ccls. or 122/210.ccls. or 122/232.ccls. or 122/231.ccls. or 122/233.ccls. or 122/234.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.