USPC Class Details

Description: 203 distillation: processes, separatory / 203 distillation: processes, separatory/(50) adding material to distilland except water or steam per se (57) organic compound (61) acid

Hierarchy/Derived subclasses

203 / 50

-> 57

-> 61

uspto searches

Patent Apps in 203/61

Granted Patents in 203/61

Use the links above or do an advanced search in ppubs for:
(203/61.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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