CC

Christopher S. Czerwinski

OE Otis Elevator: 9 patents #160 of 1,840Top 9%
CA Carrier: 1 patents #1,349 of 2,507Top 55%
Overall (All Time): #499,772 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11404954 Pulse width modulation interleaving Da Zhang, Thomas Bekasi, Ismail Agirman, Bassel Al-Annouf, Jeffrey M. Izard 2022-08-02
10513414 System and method of maintaining performance of a system Yang Wang, HanJong Kim, Edward Piedra, Shashank Krishnamurthy, Draguna Vrabie +1 more 2019-12-24
8127894 Elevator motor drive tolerant of an irregular power source Ismail Agirman, Jeffrey M. Izard, Edward Piedra, Vladimir Blasko, Frank Higgins +1 more 2012-03-06
7609534 Operating a three phase device using single phase power Ismail Agirman, Vladimir Blasko 2009-10-27
RE38439 Control of a DC matrix converter 2004-02-24
6483271 Motor drive parameters Ronnie E. Thebeau, Daryl J. Marvin, Neil A. Greiner, Edward Piedra 2002-11-19
6459599 Determining phase of AC mains in PWM controlled converters without voltage sensors Ismail Agirman, Vladimir Blasko, Jeffrey M. Izard, Edward Piedra 2002-10-01
6166930 Reduced common voltage in a DC matrix converter 2000-12-26
6058028 Control of a DC matrix converter 2000-05-02
5808240 Low-inductance planar bus arrangement Mark Eugene Shepard 1998-09-15