Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6209636 | Wellbore primary barrier and related systems | John D. Roberts, Tom Salversen, Tom Unsgaard, Eirik Enerstvedt, William A. Blizzard, Jr. +2 more | 2001-04-03 |
| 6119775 | Inflatable downhole seal | Tom Unsgaard | 2000-09-19 |