USPC Class Details – HistoricIP

Description: 534 organic compounds -- part of the class 532-570 series / 534 organic compounds -- part of the class 532-570 series/() organic compounds (class 532, subclass 1) (573) azo (617) fiber- or substrate-reactive azo compound (630) halogen attached directly to a hetero ring or to an alicyclic ring by nonionic bonding (632) the hetero ring is six-membered and contains at least two nitrogens

Hierarchy/Derived subclasses

534 / 573	-> 617	-> 630	-> 632	-> 633
				-> 634
				-> 635	-> 636
				-> 637
				-> 638

uspto searches

Patent Apps in 534/632

Granted Patents in 534/632

Use the links above or do an advanced search in ppubs for:
(534/632.ccls. or 534/633.ccls. or 534/634.ccls. or 534/635.ccls. or 534/636.ccls. or 534/637.ccls. or 534/638.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.