Assignee
DIRECT DRIVE SYSTEMS INC
US·7 granted patents·224 citations·filing 2007–2015
Top patents by PatentIndex Score
7 records- 0198US7710081B2Electromechanical energy conversion systemsDIRECT DRIVE SYSTEMS INC·Filed 2007·Granted May 4, 2010·91 cites·23 claims
- 0297US7960948B2Electromechanical energy conversion systemsDIRECT DRIVE SYSTEMS INC·Filed 2010·Granted Jun 14, 2011·33 cites·31 claims
- 0396US8040007B2Rotor for electric machine having a sleeve with segmented layersDIRECT DRIVE SYSTEMS INC·Filed 2009·Granted Oct 18, 2011·34 cites·7 claims
- 0495US7573144B1Reconfigurable power system using multiple phase-set electric machinesDIRECT DRIVE SYSTEMS INC·Filed 2008·Granted Aug 11, 2009·35 cites·10 claims
- 0590US8350432B2Electric machineDIRECT DRIVE SYSTEMS INC·Filed 2009·Granted Jan 8, 2013·15 cites·16 claims
- 0683US10263547B2Permanent magnet motor control for electric subsea pumpDIRECT DRIVE SYSTEMS INC·Filed 2015·Granted Apr 16, 2019·3 cites·23 claims
- 0777US7859212B2Electric drive system with redundancyDIRECT DRIVE SYSTEMS INC·Filed 2008·Granted Dec 28, 2010·13 cites·14 claims
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