Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8382399 | Heave compensated snubbing system and method | Bernt Olsen, Randall D. Lagendyk, Bertrom Ballard, Jr., Gary Vaughan, Bjorn Rudshaug | 2013-02-26 |
| 7438505 | Heave compensated snubbing system and method | Bernt Olsen, Randall D. Lagendyk, Bertrom Ballard, Jr., Gary Vaughan, Bjorn Rudshaug | 2008-10-21 |