USPC Class Details

Description: 544 organic compounds -- part of the class 532-570 series / 544 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 having two or more ring hetero atoms of which at least one is nitrogen (e.g., selenazines, etc.) (3) six-membered hetero ring consists of sulfur, nitrogen, and carbon (56) 1,4-thiazines (58.1) double bonded divalent chalcogen containing (58.5) additional hetero ring containing (58.7) ring chalcogen in the additional hetero ring

Hierarchy/Derived subclasses

544 / 1-> 3-> 56-> 58.1-> 58.5-> 58.7

uspto searches

Patent Apps in 544/58.7

Granted Patents in 544/58.7

Use the links above or do an advanced search in ppubs for:
(544/58.7.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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