Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9567818 | Method and apparatus for drilling and lining a wellbore | Steinar Wasa Tverlid, Jafar Abdollahi, Arne Torsvoll | 2017-02-14 |
| 9534456 | Centralizer | Tore Weltzin, Gaute Grindhaug, Jafar Abdollahi | 2017-01-03 |