Hierarchy/Derived subclasses
215 / 200 | -> 316 | -> 341 | -> 349 | -> 351 |
uspto searches
Patent Apps in 215/351Granted Patents in 215/351
Use the links above or do an advanced search in ppubs for:
(215/351.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.