DL

Dirk Ligthelm

Shell Oil Compny: 2 patents #1,477 of 4,423Top 35%
Overall (All Time): #2,159,383 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7252162 Method and device for injecting a fluid into a formation Monsuru Olatunji Akinlade, Djurre Hans Zijsling 2007-08-07
7243720 Inhibiting breakthrough of driving fluid via a permeable geological layer into an oil production well 2007-07-17