Hierarchy/Derived subclasses
312 / 9.1 | -> 9.9 | -> 9.47 | -> 9.53 | -> 9.54 |
uspto searches
Patent Apps in 312/9.54Granted Patents in 312/9.54
Use the links above or do an advanced search in ppubs for:
(312/9.54.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.