USPC Class Details

Description: 203 distillation: processes, separatory / 203 distillation: processes, separatory/(71) plural distillations performed on same material (81) distillation of initial distillate (83) including the addition of water or steam

Hierarchy/Derived subclasses

203 / 71

-> 81

-> 83

uspto searches

Patent Apps in 203/83

Granted Patents in 203/83

Use the links above or do an advanced search in ppubs for:
(203/83.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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