BS

Bob Schaefer

LB Louis Berkman: 1 patents #23 of 29Top 80%
SS Swenson Spreader: 1 patents #4 of 10Top 40%
Overall (All Time): #1,895,392 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10526754 Material spreader for a heavy duty vehicle Troy Fox, Tom Rasmussen, Bill Hintzsche 2020-01-07
8505838 Electric interlock for spreader Eric Larsen, Roland L. Hagemeyer 2013-08-13