Hierarchy/Derived subclasses
| 370 / 229 | -> 235 | -> 235.1 | |
| -> 236 | -> 236.1 | ||
| -> 236.2 | |||
| -> 237 | |||
| -> 238 | -> 238.1 |
uspto searches
Patent Apps in 370/235Granted Patents in 370/235
Use the links above or do an advanced search in ppubs for:
(370/235.ccls. or 370/235.1.ccls. or 370/236.ccls. or 370/236.1.ccls. or 370/236.2.ccls. or 370/237.ccls. or 370/238.ccls. or 370/238.1.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.