Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10954428 | Alkoxyphenyl carboxylic acid tracers | — | 2021-03-23 |
| 9856732 | Tracers | Beata Krognes Jessheim, Sissel Opsahl Viig, Øyvind Dugstad | 2018-01-02 |
| 8895484 | Use of biphenyl, terphenyl, and fluorene sulphonic acid based tracers for monitoring streams of fluids | — | 2014-11-25 |
| 7560690 | System for delivery of a tracer in fluid transport systems and use thereof | Øyvind Dugstad, Sindre Hassfjell | 2009-07-14 |