EP

Edward Piedra

OE Otis Elevator: 2 patents #14 of 133Top 15%
📍 Chicopee, MA: #2 of 9 inventorsTop 25%
🗺 Massachusetts: #731 of 6,384 inventorsTop 15%
Overall (2002): #67,005 of 266,432Top 30%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6483271 Motor drive parameters Ronnie E. Thebeau, Daryl J. Marvin, Christopher S. Czerwinski, Neil A. Greiner 2002-11-19
6459599 Determining phase of AC mains in PWM controlled converters without voltage sensors Ismail Agirman, Vladimir Blasko, Christopher S. Czerwinski, Jeffrey M. Izard 2002-10-01