USPC Class Details

Description: 208 mineral oils: processes and products / 208 mineral oils: processes and products/(177) refining (179) purifying used oil (184) distillation or degassing (185) with gaseous treating agent

Hierarchy/Derived subclasses

208 / 177

-> 179

-> 184

-> 185

uspto searches

Patent Apps in 208/185

Granted Patents in 208/185

Use the links above or do an advanced search in ppubs for:
(208/185.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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