Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5919739 | Plugging liquid for plugging a subterranean formation zone | Egil Sunde | 1999-07-06 |
| 5717131 | Apparatus for testing a shear thickening plugging fluid | Egil Sunde, Tommy Engan | 1998-02-10 |
| 4888981 | Apparatus for testing of fluids | Edgar Johansen | 1989-12-26 |
| 4650520 | Slurry for cementing, especially cementing of lining pipes in drill holes, and method for production of such a slurry | Knut Gaaseidnes | 1987-03-17 |