Hierarchy/Derived subclasses
| 375 / 259 | -> 268 | -> 269 |
uspto searches
Patent Apps in 375/269Granted Patents in 375/269
Use the links above or do an advanced search in ppubs for:
(375/269.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.