Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9297237 | Deadleg | Knud Lunde, Keijo Kinnari | 2016-03-29 |
| 8705949 | Method and system for direct electric heating of a pipeline | Keijo Kinnari, Kjell Morisbak Lund, Atle Harald Børnes | 2014-04-22 |
| 8220552 | Method of inhibiting hydrate formation | Keijo Kinnari, Knud Lunde, Leif Aaberge | 2012-07-17 |
| 8191646 | Method for protecting hydrocarbon conduits | Keijo Kinnari, Knud Lunde, Leif Aaberge | 2012-06-05 |
| 7406738 | Thruster pig | Keijo Kinnari, Jim Bob Crawford | 2008-08-05 |
| 7279052 | Method for hydrate plug removal | Keijo Kinnari, Jim Bob Crawford, Larry J. Kirspel, Bill Torrance | 2007-10-09 |