Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6112815 | Inflow regulation device for a production pipe for production of oil or gas from an oil and/or gas reservoir | Olav Sveinung Haugerud, Hans-Paul Carlsen | 2000-09-05 |
| 5997045 | Pipe joint | Hans-Paul Carlsen, Stig Holgersen, Olay Sveinung Haugerud | 1999-12-07 |
| 5881807 | Injector for injecting a tracer into an oil or gas reservior | Hans-Paul Carlsen, Stig Holgersen, Olav Sveinung Haugerud | 1999-03-16 |