Assignee
BERGQUIST TORRINGTON COMPANY
US·12 granted patents·108 citations·filing 2004–2008
Top patents by PatentIndex Score
12 records- 0192US7692395B2Extrapolation of back EMF signals in brushless DC motorsBERGQUIST TORRINGTON COMPANY·Filed 2007·Granted Apr 6, 2010·27 cites·20 claims
- 0287US7940020B2Brushless DC motor with reduced current rippleBERGQUIST TORRINGTON COMPANY·Filed 2007·Granted May 10, 2011·18 cites·27 claims
- 0376US7777436B2Sensorless drive for unipolar three phase brushless DC motorsBERGQUIST TORRINGTON COMPANY·Filed 2008·Granted Aug 17, 2010·14 cites·27 claims
- 0469US7237327B2Apparatus for mounting a plurality of magnet segments on a back ringBERGQUIST TORRINGTON COMPANY·Filed 2005·Granted Jul 3, 2007·5 cites·10 claims
- 0567US7350283B2Method for making rotor for permanent magnet electric machineBERGQUIST TORRINGTON COMPANY·Filed 2004·Granted Apr 1, 2008·14 cites·11 claims
- 0665US7305905B2Rotatable member with an annular groove for dynamic balancing during rotationBERGQUIST TORRINGTON COMPANY·Filed 2004·Granted Dec 11, 2007·10 cites·14 claims
- 0762US7863791B2Device and method for assembling electric motorBERGQUIST TORRINGTON COMPANY·Filed 2008·Granted Jan 4, 2011·3 cites·21 claims
- 0862US7190564B2Snubber circuitBERGQUIST TORRINGTON COMPANY·Filed 2004·Granted Mar 13, 2007·11 cites·4 claims
- 0959US7481108B2Rotatable member with an annular groove for dynamic balancing during rotationBERGQUIST TORRINGTON COMPANY·Filed 2007·Granted Jan 27, 2009·2 cites·4 claims
- 1058US7859153B2Device and method for mounting electric motor statorsBERGQUIST TORRINGTON COMPANY·Filed 2008·Granted Dec 28, 2010·1 cites·19 claims
- 1146US7347252B2Centrifugal impellerBERGQUIST TORRINGTON COMPANY·Filed 2004·Granted Mar 25, 2008·2 cites·2 claims
- 1235US7231822B2Machine and method for balancing a member during rotationBERGQUIST TORRINGTON COMPANY·Filed 2004·Granted Jun 19, 2007·1 cites·2 claims
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