Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5435393 | Procedure and production pipe for production of oil or gas from an oil or gas reservoir | Kristian Brekke | 1995-07-25 |
| 5158613 | Cement slurry | Oystein Kalvenes, Asbjorn Vonheim | 1992-10-27 |