JS

John A. Straatmann

AM Amax: 1 patents #59 of 180Top 35%
Overall (All Time): #4,019,404 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4533405 Tubular high strength low alloy steel for oil and gas wells David L. Sponseller 1985-08-06