SR

Steven P. Randall

SL Switched Reluctance Drives Limited: 13 patents #2 of 47Top 5%
EE Emerson Electric: 5 patents #214 of 1,374Top 20%
NM Nidec Motor: 4 patents #59 of 217Top 30%
ND Nidec Sr Drives: 1 patents #5 of 14Top 40%
Overall (All Time): #184,281 of 4,157,543Top 5%
23
Patents All Time

Issued Patents All Time

Showing 1–23 of 23 patents

Patent #TitleCo-InventorsDate
9917486 Electric motor assemblies including stator and/or rotor cooling Thomas E. Kirkley, Jr., Lawrence J. Wittman, Andrew F. Poag 2018-03-13
9819233 Internal rotor sensor having adjustable sensor carrier Kenneth R. Friedman, Ronald W. Schmidt 2017-11-14
9312801 Control of a brushless electrical machine Mark J. Cherney 2016-04-12
8963384 Electric motor assemblies including stator and/or rotor cooling Thomas E. Kirkley, Jr., Lawrence J. Wittman, Andrew F. Poag 2015-02-24
8916997 Electric motor assemblies including stator and/or rotor cooling Thomas E. Kirkley, Jr., Lawrence J. Wittman, Andrew F. Poag 2014-12-23
7906931 Control of a switched reluctance machine 2011-03-15
7804269 Control of an electrical machine 2010-09-28
7151359 Variable reluctance generator Joseph G. Marcinkiewicz 2006-12-19
7014586 Electro-mechanical transmission systems 2006-03-21
7012350 Segmented stator switched reluctance machine C. Theodore Peachee, Donald J. Williams, James Wafer, Marielle Piron, Richard Strong Wallace, Jr. +1 more 2006-03-14
6897591 Sensorless switched reluctance electric machine with segmented stator C. Theodore Peachee, Donald J. Williams, James Wafer, Marielle Piron, Richard Strong Wallace, Jr. +1 more 2005-05-24
6809441 Cooling of electrical machines 2004-10-26
6700284 Fan assembly including a segmented stator switched reluctance fan motor Donald J. Williams, Craig E. Wallace 2004-03-02
6584813 Washing machine including a segmented stator switched reluctance motor C. Theodore Peachee, Donald J. Williams 2003-07-01
6476531 Winding for switched reluctance machines 2002-11-05
6072260 Noise reduction in reluctance machines 2000-06-06
5877568 Rotor position sensing system Gregory Maes, Raymond D. Heilman, James L. Skinner 1999-03-02
5814965 Reduced noise controller for a switched reluctance machine 1998-09-29
5811954 Reduced noise controller for a switched reluctance machine using active noise cancellation 1998-09-22
5760565 Method and apparatus for reducing iron losses in a switched reluctance machine 1998-06-02
5726516 Rotor for high speed switched reluctance machine 1998-03-10
5637972 Rotor position encoder having features in decodeable angular positions David M. Sudgen, William Banning Vail, III, Geoffrey T. Brown 1997-06-10
5539293 Rotor position encoder having features in decodable angular positions David M. Sudgen, Willliam Vail, Geoffrey T. Brown 1996-07-23