SB

Stephen T. Barnum

BO Borgwarner: 2 patents #505 of 1,600Top 35%
Overall (All Time): #2,141,092 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7628262 Electrical activation of a viscous clutch Michael Tuttle 2009-12-08
7178648 Electrical activation of a viscous clutch Michael Tuttle 2007-02-20