USPC Class Details

Description: 166 wells / 166 wells/(55) means for perforating, weakening, bending or separating pipe at an unprepared point (55.6) cutter rotates circumferentially of pipe (55.7) internal (55.8) tool moved radially by fluid pressure

Hierarchy/Derived subclasses

166 / 55

-> 55.6

-> 55.7

-> 55.8

uspto searches

Patent Apps in 166/55.8

Granted Patents in 166/55.8

Use the links above or do an advanced search in ppubs for:
(166/55.8.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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