Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11446715 | Device for removal of sediment from inside piles | — | 2022-09-20 |
| 7765725 | Method and device for removing subsea rocks and sediments | Terje Fagervold | 2010-08-03 |
| 7395618 | Subsea excavation and suction device | Halvor Snellingen | 2008-07-08 |
| 6966132 | Method and device for moving subsea rocks and sediments | Terje Fagervold, Gunner Fagervold, Gustav Kvalvaag | 2005-11-22 |
| 6868625 | Method and device for subsea dredging | Terje Fagervold, Gunnar Fagervold, Gustav Kvalvaag | 2005-03-22 |
| 6533500 | Method for reducing frictional losses in tunnels | Lars Jenssen | 2003-03-18 |
| 5193594 | Arrangement for injecting additives | Leif Johansson | 1993-03-16 |
| 5133391 | Method and arrangement for injecting additives | Leif Johansson | 1992-07-28 |