Hierarchy/Derived subclasses
203 / 50 | -> 57 | -> 63 | -> 64 |
-> 65 | |||
-> 66 |
uspto searches
Patent Apps in 203/63Granted Patents in 203/63
Use the links above or do an advanced search in ppubs for:
(203/63.ccls. or 203/64.ccls. or 203/65.ccls. or 203/66.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.