Hierarchy/Derived subclasses
| 375 / 242 | -> 244 | -> 247 | -> delta | -> 252 |
uspto searches
Patent Apps in 375/252Granted Patents in 375/252
Use the links above or do an advanced search in ppubs for:
(375/252.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.