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