Assignee
WWT INTERNATIONAL INC
US·7 granted patents·157 citations·filing 2007–2013
Technology mixE21B7
Top patents by PatentIndex Score
7 records- 0196US8028766B2Electrically powered tractorWWT INTERNATIONAL INC·Filed 2010·Granted Oct 4, 2011·26 cites·12 claims
- 0292US7954563B2Roller link toggle gripper and downhole tractorWWT INTERNATIONAL INC·Filed 2009·Granted Jun 7, 2011·39 cites·7 claims
- 0391US7748476B2Variable linkage assisted gripperWWT INTERNATIONAL INC·Filed 2007·Granted Jul 6, 2010·38 cites·31 claims
- 0487US7770667B2Electrically powered tractorWWT INTERNATIONAL INC·Filed 2008·Granted Aug 10, 2010·26 cites·50 claims
- 0582US7954562B2Expandable ramp gripperWWT INTERNATIONAL INC·Filed 2009·Granted Jun 7, 2011·21 cites·24 claims
- 0660US7938202B2Rotating drill pipe protector attachment and fastener assemblyWWT INTERNATIONAL INC·Filed 2009·Granted May 10, 2011·7 cites·20 claims
- 0743US9157277B2Motor saver sub for down hole drilling assembliesWWT INTERNATIONAL INC·Filed 2013·Granted Oct 13, 2015·0 cites·18 claims
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