Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8042574 | Plug with expandable packer element | John Helvik | 2011-10-25 |
| 7363989 | Device for a pulling tool for use in pipes and boreholes for the production of oil and gas | Geir Ueland | 2008-04-29 |
| 5655607 | Downhole tool for pressure testing of oil and gas wells | Bernt Sigve Aadn.o slashed.y, Svein ritsland, Jan Freyer | 1997-08-12 |