Hierarchy/Derived subclasses
| 307 / 401 | -> 402 | -> 403 |
| -> 404 | ||
| -> 405 | ||
| -> 406 | ||
| -> 407 | -> 408 | |
| -> 409 | ||
| -> 410 | ||
| -> 411 | ||
| -> 412 | ||
| -> 413 | ||
| -> 414 | ||
| -> 415 | ||
| -> 416 | -> 417 | |
| -> 418 | ||
| -> 419 | -> 420 | |
| -> 421 | ||
| -> 422 | -> 423 | |
| -> 424 |
uspto searches
Patent Apps in 307/401Granted Patents in 307/401
Use the links above or do an advanced search in ppubs for:
(307/401.ccls. or 307/402.ccls. or 307/403.ccls. or 307/404.ccls. or 307/405.ccls. or 307/406.ccls. or 307/407.ccls. or 307/408.ccls. or 307/409.ccls. or 307/410.ccls. or 307/411.ccls. or 307/412.ccls. or 307/413.ccls. or 307/414.ccls. or 307/415.ccls. or 307/416.ccls. or 307/417.ccls. or 307/418.ccls. or 307/419.ccls. or 307/420.ccls. or 307/421.ccls. or 307/422.ccls. or 307/423.ccls. or 307/424.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.