JE

John Michael Engstrom

BI Bechtel International: 1 patents #10 of 40Top 25%
Overall (All Time): #3,936,333 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4861043 Pressure/compression concrete joint seal Joseph R. Anderson, Barney T. Baldi 1989-08-29