Hierarchy/Derived subclasses
| 452 / 71 | -> 86 | -> 87 | -> 88 | -> 89 | -> 90 |
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uspto searches
Patent Apps in 452/86Granted Patents in 452/86
Use the links above or do an advanced search in ppubs for:
(452/86.ccls. or 452/87.ccls. or 452/88.ccls. or 452/89.ccls. or 452/90.ccls. or 452/91.ccls. or 452/92.ccls. or 452/93.ccls. or 452/94.ccls. or 452/95.ccls. or 452/96.ccls. or 452/97.ccls. or 452/98.ccls. or 452/99.ccls. or 452/100.ccls. or 452/101.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.