Hierarchy/Derived subclasses
| 99 / 324 | -> 403 | -> 404 | -> 405 | -> 406 |
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uspto searches
Patent Apps in 99/403Granted Patents in 99/403
Use the links above or do an advanced search in ppubs for:
(99/403.ccls. or 99/404.ccls. or 99/405.ccls. or 99/406.ccls. or 99/407.ccls. or 99/408.ccls. or 99/409.ccls. or 99/410.ccls. or 99/411.ccls. or 99/412.ccls. or 99/413.ccls. or 99/414.ccls. or 99/415.ccls. or 99/416.ccls. or 99/417.ccls. or 99/418.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.