Hierarchy/Derived subclasses
| 434 / 81 | -> 85 | -> 86 |
| -> 87 | ||
| -> 88 | ||
| -> 89 | ||
| -> 90 | ||
| -> 91 | ||
| -> 92 |
uspto searches
Patent Apps in 434/85Granted Patents in 434/85
Use the links above or do an advanced search in ppubs for:
(434/85.ccls. or 434/86.ccls. or 434/87.ccls. or 434/88.ccls. or 434/89.ccls. or 434/90.ccls. or 434/91.ccls. or 434/92.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.