Assignee
HAUGEN DAVID M
US·5 granted patents·239 citations·filing 1985–2013
Top patents by PatentIndex Score
5 records- 0198US8684367B2Methods and apparatus for suspension lock out and signal generationHAUGEN DAVID M·Filed 2013·Granted Apr 1, 2014·56 cites·12 claims
- 0298US8393446B2Methods and apparatus for suspension lock out and signal generationHAUGEN DAVID M·Filed 2009·Granted Mar 12, 2013·105 cites·9 claims
- 0392US8251151B2Apparatus and methods for tubular makeup interlockHAUGEN DAVID M·Filed 2011·Granted Aug 28, 2012·11 cites·28 claims
- 0482US8517090B2Apparatus and methods for tubular makeup interlockHAUGEN DAVID M·Filed 2012·Granted Aug 27, 2013·4 cites·22 claims
- 0582US4662450AExplosively set downhole apparatusHAUGEN DAVID M·Filed 1985·Granted May 5, 1987·63 cites·20 claims
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