Hierarchy/Derived subclasses
273 / 317 | -> 348 | -> 378 | -> 386 | -> 387 | -> 388 | |
-> 389 | ||||||
-> 390 | -> 391 | -> 392 | ||||
-> 393 |
uspto searches
Patent Apps in 273/386Granted Patents in 273/386
Use the links above or do an advanced search in ppubs for:
(273/386.ccls. or 273/387.ccls. or 273/388.ccls. or 273/389.ccls. or 273/390.ccls. or 273/391.ccls. or 273/392.ccls. or 273/393.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.