USPC Class Details

Description: 546 organic compounds -- part of the class 532-570 series / 546 organic compounds -- part of the class 532-570 series/() organic compounds (class 532, subclass 1) () heterocyclic carbon compounds containing a hetero ring having chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) or nitrogen as the only ring hetero atoms (class 540, subclass 1) (1) hetero ring is six-membered consisting of one nitrogen and five carbons (26) polycyclo ring system having the six-membered hetero ring as one of the cyclos (30) octacyclo ring system having the six-membered hetero ring as one of the cyclos

Hierarchy/Derived subclasses

546 / 1-> 26-> 30-> 31-> 32

uspto searches

Patent Apps in 546/30

Granted Patents in 546/30

Use the links above or do an advanced search in ppubs for:
(546/30.ccls. or 546/31.ccls. or 546/32.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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