DS

David E. Siverling

IC Ico: 1 patents #9 of 21Top 45%
Overall (All Time): #2,183,681 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6945113 End-to-end ultrasonic inspection of tubular goods Doug R. Lester, Bill McWhorter 2005-09-20
5600069 Ultrasonic testing apparatus and method for multiple diameter oilfield tubulars Richard J. Girndt 1997-02-04