WP

William Robert Portas

Shell Oil Compny: 2 patents #1,477 of 4,423Top 35%
Overall (All Time): #1,925,140 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10871051 System and method for drilling a wellbore portion in a subterranean formation Daniele Di Crescenzo 2020-12-22
9822614 Combined casing system and method Darrell Scott Costa, Djurre Hans Zijsling 2017-11-21