Hierarchy/Derived subclasses
| 312 / 293.1 | -> 293.2 |
| -> 293.3 |
uspto searches
Patent Apps in 312/293.1Granted Patents in 312/293.1
Use the links above or do an advanced search in ppubs for:
(312/293.1.ccls. or 312/293.2.ccls. or 312/293.3.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.