Hierarchy/Derived subclasses
| 132 / 212 | -> 273 | -> 274 | |||
| -> 275 | |||||
| -> 276 | -> 277 | ||||
| -> 278 | -> 279 | ||||
| -> 280 | -> 281 | -> 282 | |||
| -> 283 | |||||
| -> 284 |
uspto searches
Patent Apps in 132/273Granted Patents in 132/273
Use the links above or do an advanced search in ppubs for:
(132/273.ccls. or 132/274.ccls. or 132/275.ccls. or 132/276.ccls. or 132/277.ccls. or 132/278.ccls. or 132/279.ccls. or 132/280.ccls. or 132/281.ccls. or 132/282.ccls. or 132/283.ccls. or 132/284.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.