Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5388317 | Method for reinforcing and repairing equipment parts and components subjected to heavy abrasive wear | Knut Henrik Johansen, Hans H. Schelderup | 1995-02-14 |
| 5135576 | Combined structures of ceramic materials and super concrete | Knut Henrik Johansen, Terje Nilsen | 1992-08-04 |