Hierarchy/Derived subclasses
| 152 / 151 | -> 196 | -> 197 | -> 198 | -> 199 |
| -> 200 | ||||
| -> 201 | ||||
| -> 202 |
uspto searches
Patent Apps in 152/196Granted Patents in 152/196
Use the links above or do an advanced search in ppubs for:
(152/196.ccls. or 152/197.ccls. or 152/198.ccls. or 152/199.ccls. or 152/200.ccls. or 152/201.ccls. or 152/202.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.