Hierarchy/Derived subclasses
| 451 / 64 | -> 119 | -> 120 | -> 124 | -> 132 | -> 133 |
| -> 134 |
uspto searches
Patent Apps in 451/132Granted Patents in 451/132
Use the links above or do an advanced search in ppubs for:
(451/132.ccls. or 451/133.ccls. or 451/134.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.