Hierarchy/Derived subclasses
| 337 / 14 | -> 142 | -> 227 | -> 255 | -> 256 | -> 257 | -> 258 | -> 259 |
| -> 260 | -> 261 | ||||||
| -> 262 | -> 263 | ||||||
| -> 264 | |||||||
| -> 265 | -> 266 | ||||||
| -> 267 | |||||||
| -> 268 | -> 269 | ||||||
| -> 270 | -> 271 | ||||||
| -> 272 |
uspto searches
Patent Apps in 337/255Granted Patents in 337/255
Use the links above or do an advanced search in ppubs for:
(337/255.ccls. or 337/256.ccls. or 337/257.ccls. or 337/258.ccls. or 337/259.ccls. or 337/260.ccls. or 337/261.ccls. or 337/262.ccls. or 337/263.ccls. or 337/264.ccls. or 337/265.ccls. or 337/266.ccls. or 337/267.ccls. or 337/268.ccls. or 337/269.ccls. or 337/270.ccls. or 337/271.ccls. or 337/272.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.