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) (1) heavy metal containing (e.g., ga, in or t1, etc.) (118) zinc, cadmium, or mercury containing (zn, cd, or hg) (121) carbon bonded directly to the metal (129) the compound consists of the metal, carbon and hydrogen (e.g., dialkyl zinc, etc.)

Hierarchy/Derived subclasses

556 / 1-> 118-> 121-> 129

uspto searches

Patent Apps in 556/129

Granted Patents in 556/129

Use the links above or do an advanced search in ppubs for:
(556/129.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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