SC

Stephen I. Callis

AS American Superconductor: 1 patents #95 of 177Top 55%
📍 Carshalton, MD: #1 of 1 inventorsTop 100%
Overall (All Time): #1,402,247 of 4,157,543Top 35%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11794872 Electrical power system for a watercraft John M. Ulliman, Timothy MacDonald 2023-10-24
10669001 Hybrid electrical and mechanical propulsion and energy system for a ship John M. Ulliman, Douglas C. Folts, Bruce Gamble 2020-06-02
D440163 Combined wristwatch and stress/heart monitor with warning device 2001-04-10