Assignee
DWJ INC
US4 patents
Top patents by PatentIndex Score
US9404321B2Aug 2, 2016
Oilfield lift cap and combination tools
DWJ INC6 citations82
US9404341B2Aug 2, 2016
Release tool for a drill string inside blowout preventer
DWJ INC3 citations71
US10012040B2Jul 3, 2018
Methods of using oilfield lift caps and combination tools
DWJ INC0 citations51
US9771766B2Sep 26, 2017
Release tool with adjustable release rod for a drill string inside blowout preventer
DWJ INC0 citations40