Hierarchy/Derived subclasses
347 / 171 | -> 200 | -> 208 | -> 209 | -> 210 |
uspto searches
Patent Apps in 347/208Granted Patents in 347/208
Use the links above or do an advanced search in ppubs for:
(347/208.ccls. or 347/209.ccls. or 347/210.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.