LS

Lars Stæhr

WA Welltec Oilfield Solutions Ag: 2 patents #3 of 13Top 25%
Overall (2020): #148,794 of 565,922Top 30%
2
Patents 2020

Issued Patents 2020

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10711562 Annular barrier with expansion unit 2020-07-14
10526865 Annular barrier with closing mechanism 2020-01-07