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 (15) spiro (16) the spiro includes the six-membered hetero ring (17) polycyclo ring system having one of the two rings which form the spiro as one of the cyclos (18) polycyclo ring system having the six-membered hetero ring as one of the cyclos

Hierarchy/Derived subclasses

546 / 1-> 15-> 16-> 17-> 18

uspto searches

Patent Apps in 546/18

Granted Patents in 546/18

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(546/18.ccls.)

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