Hierarchy/Derived subclasses
2 / 243.1 | -> 255 | -> 256 | -> 257 | |||
-> 258 | -> 259 | -> 260 | -> 260.1 | |||
-> 261 | ||||||
-> 262 | ||||||
-> 263 | ||||||
-> 264 |
uspto searches
Patent Apps in 2/255Granted Patents in 2/255
Use the links above or do an advanced search in ppubs for:
(2/255.ccls. or 2/256.ccls. or 2/257.ccls. or 2/258.ccls. or 2/259.ccls. or 2/260.ccls. or 2/260.1.ccls. or 2/261.ccls. or 2/262.ccls. or 2/263.ccls. or 2/264.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.