Hierarchy/Derived subclasses
| 343 / 700r | -> 878 | -> 880 | -> 881 |
uspto searches
Patent Apps in 343/881Granted Patents in 343/881
Use the links above or do an advanced search in ppubs for:
(343/881.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.