Hierarchy/Derived subclasses
| 99 / 324 | -> 325 | -> 334 | -> 335 | -> 336 |
uspto searches
Patent Apps in 99/335Granted Patents in 99/335
Use the links above or do an advanced search in ppubs for:
(99/335.ccls. or 99/336.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.