Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5475188 | Device for securing two or more seismic energy sources at fixed relative positions | Hans Cappelen, Tor Elholm, Ayvind Sarbotten | 1995-12-12 |
| 5357892 | Deflector | Hans Cappelen, Oyvind Sorbotten, Tor Elholm, Gunnar Lindemann | 1994-10-25 |
| 5329071 | Method and device for operation of equipment installed in marine seismic tows | Hans Cappelen, Oyvind Sorbotten | 1994-07-12 |
| 5164922 | Device for firmly holding seismic means, especially sources of seismic energy | Hans Cappelen, Oyvind Sorbotten | 1992-11-17 |