DT

David R. Thigpen

Shell Oil Compny: 6 patents #511 of 4,423Top 15%
Overall (All Time): #891,966 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
5223153 Iron hydroxide removal method Jimmie B. Lawson 1993-06-29
5068043 Preformed surfactant-optimized aqueous alkaline flood Jimmie B. Lawson, Richard C. Nelson 1991-11-26
H475 Preparing an aqueous alkaline solution for recovery of oil from a Jimmie B. Lawson, Richard C. Nelson, Jeffery G. Southwick 1988-06-07
4502541 Staged preformed-surfactant-optimized aqueous alkaline flood Jimmie B. Lawson 1985-03-05
4493371 Recovering oil by injecting aqueous alkali, cosurfactant and gas Joseph Reisberg, Lawrence James Bielamowicz 1985-01-15
4279305 Process for stimulating a well with a saline surfactant sulfate, alkanol and acid system Randolph H. Knapp, Jimmie B. Lawson, Joseph Reisberg, Harold J. Hill 1981-07-21