Hierarchy/Derived subclasses
175 / 293 | -> 1 | -> 2 | -> 300 | -> 301 | |
-> 302 | -> 303 | ||||
-> 304 |
uspto searches
Patent Apps in 175/300Granted Patents in 175/300
Use the links above or do an advanced search in ppubs for:
(175/300.ccls. or 175/301.ccls. or 175/302.ccls. or 175/303.ccls. or 175/304.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.