JW

John E. Walraven

EX ExxonMobil: 1 patents #5,661 of 10,161Top 60%
Overall (All Time): #4,051,984 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4384483 Preventing buckling in drill string Thomas B. Dellinger, Wilton Gravley 1983-05-24