Hierarchy/Derived subclasses
312 / 294 | -> 330.1 | -> 334.1 | -> 334.27 | -> 334.36 | -> 334.38 |
uspto searches
Patent Apps in 312/334.38Granted Patents in 312/334.38
Use the links above or do an advanced search in ppubs for:
(312/334.38.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.