USPC Class Details

Description: 166 wells / 166 wells/(244.1) processes (250.01) with indicating, testing, measuring or locating (252.1) including production of earth fluid by driving fluid (252.6) and tracing material

Hierarchy/Derived subclasses

166 / 244.1

-> 250.01

-> 252.1

-> 252.6

uspto searches

Patent Apps in 166/252.6

Granted Patents in 166/252.6

Use the links above or do an advanced search in ppubs for:
(166/252.6.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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