USPC Class Details

Description: 352 optics: motion pictures / 352 optics: motion pictures/(85) special effects

Hierarchy/Derived subclasses

352 / 85-> 86
 -> 87
 -> 88-> 89
 -> 90
 -> 91r-> 91c-> 91s

uspto searches

Patent Apps in 352/85

Granted Patents in 352/85

Use the links above or do an advanced search in ppubs for:
(352/85.ccls. or 352/86.ccls. or 352/87.ccls. or 352/88.ccls. or 352/89.ccls. or 352/90.ccls. or 352/91r.ccls. or 352/91c.ccls. or 352/91s.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.
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