Hierarchy/Derived subclasses
99 / 452 | -> 456 | -> 458 | -> 459 |
uspto searches
Patent Apps in 99/458Granted Patents in 99/458
Use the links above or do an advanced search in ppubs for:
(99/458.ccls. or 99/459.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.