Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5814718 | Method and apparatus for measuring or controlling friction | Oddvard Johnsen, Zoltan Ivan Rado | 1998-09-29 |
| 4518050 | Rotating double barrel core sampler | Steinar Sollie | 1985-05-21 |