Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9594180 | Removing ghost reflections from marine seismic data | — | 2017-03-14 |
| 8205711 | Seismic source arrays | Jon-Fredrik Hopperstad, Pieter Leonard Vermeer | 2012-06-26 |
| 7321527 | Method and apparatus for controlling the acoustic output of an airgun | Jon-Fredrik Hopperstad, Anneli Soppi | 2008-01-22 |