AC

Alexander Cook

IBM: 84 patents #777 of 70,183Top 2%
SU Sundstrand: 26 patents #7 of 697Top 2%
VA Vanner: 18 patents #1 of 16Top 7%
JD John Deere: 1 patents #2,957 of 5,518Top 55%
UF US Air Force: 1 patents #6,190 of 16,312Top 40%
Northwestern University: 1 patents #1,629 of 3,846Top 45%
📍 Rochester, MN: #15 of 3,042 inventorsTop 1%
🗺 Minnesota: #108 of 52,454 inventorsTop 1%
Overall (All Time): #8,162 of 4,157,543Top 1%
132
Patents All Time

Issued Patents All Time

Showing 101–125 of 132 patents

Patent #TitleCo-InventorsDate
7057376 Power management system for vehicles Alexander Isurin, Philip Irwin 2006-06-06
D499074 Enclosure for electronic equipment Stephen D. Speck, Michael O'Sullivan, David W. Douglas, Frank Leyshon, David A. Watson 2004-11-30
D483019 Heat sink for electronic equipment Stephen D. Speck, Michael O'Sullivan, David W. Douglas, Frank Leyshon, David A. Watson 2003-12-02
6570416 Lossless gate driver circuit Alexander Isurin 2003-05-27
6483731 Alexander topology resonance energy conversion and inversion circuit utilizing a series capacitance multi-voltage resonance section Alexander Isurin 2002-11-19
5581168 Starter/generator system with DC link current control Gregory I. Rozman, Albert L. Markunas, Vietson M. Nguyen 1996-12-03
5430362 Engine starting system utilizing multiple controlled acceleration rates Kenneth R. Carr, Gregory I. Rozman, Albert L. Markunas, Michael J. Hanson, Leland E. Weber +6 more 1995-07-04
5343379 Control method for inverters having dwell times between switch conduction periods Maurice A. Kirchberg, Jr. 1994-08-30
5309081 Power conversion system with dual permanent magnet generator having prime mover start capability Mahesh J. Shah 1994-05-03
5218520 VSCF system with reduced DC link ripple Gregory I. Rozman 1993-06-08
5132894 Electric power generating system with active damping Gregory I. Rozman, Albert L. Markunas, Madan L. Bansal, Shan-Chin Tsai 1992-07-21
5126647 Pulse by pulse current limit and phase current monitor for a pulse width modulated inverter Scott E. Blackburn 1992-06-30
5107192 Magnetic bearing control at critical shaft speeds Maurice A. Kirchberg, Jr. 1992-04-21
5097195 AC exciter for VSCF starter/generator Bernard A. Raad, Barry J. Parker, Alexander Krinickas, Jr., Loren Rademacher 1992-03-17
5055992 Control for full-bridge inverter 1991-10-08
5055764 Low voltage aircraft engine starting system Gregory I. Rozman, Timothy F. Glennon 1991-10-08
5053939 Control of PWM inverters by pattern development from stored constants relating D.C. link harmonics to output distortion Maurice A. Kirchberg, Jr. 1991-10-01
5043857 Real-time control of PWM inverters by pattern development from stored constants Maurice A. Kirchberg, Jr. 1991-08-27
5038095 Control for a DC link power conversion system Maurice A. Kirchberg, Jr. 1991-08-06
5034876 Real-time evaluation of PWM inverter pattern selection Maurice A. Kirchberg, Jr. 1991-07-23
5001622 Enhanced real-time control of PWM inverter Maurice A. Kirchberg, Jr. 1991-03-19
4994956 Enhanced real time control of PWM inverters Maurice A. Kirchberg, Jr. 1991-02-19
4977492 Suppression of switching harmonics Maurice A. Kirchberg, Jr. 1990-12-11
4967334 Inverter input/output filter system John J. Dhyanchand, Rasappa Palaniappan, Dwight D. Schmitt 1990-10-30
4964027 High efficiency power generating system John N. Rice, David H. Hitt 1990-10-16