DW

Douglas G. Webster

SP Sphero: 1 patents #33 of 60Top 60%
Overall (All Time): #1,477,809 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9968864 Multi-body self propelled device with magnetic yaw control David E. Clarke, Judd Nutting, Miles Keeney-Ritchie, Adam Short, Ross MacGregor 2018-05-15
4449082 Motor speed control system 1984-05-15
4374352 AC Induction motor braking system 1983-02-15