USPC Class Details

Description: 556 organic compounds -- part of the class 532-570 series / 556 organic compounds -- part of the class 532-570 series/() organic compounds (class 532, subclass 1) (170) aluminum containing (187) processes of preparing, purifying or recovering compounds having plural carbons bonded directly to the same aluminum (188) aluminum containing alloy or elemental aluminum utilized

Hierarchy/Derived subclasses

556 / 170

-> 187

-> 188

-> 189

uspto searches

Patent Apps in 556/188

Granted Patents in 556/188

Use the links above or do an advanced search in ppubs for:
(556/188.ccls. or 556/189.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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