Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9963947 | Apparatus and method for controlling pressure in a borehole | Ivar Kjøsnes | 2018-05-08 |
| 9346634 | System and method for passing matter in a flow passage | — | 2016-05-24 |
| 9243717 | Gate valve, method for returned drilling mud pressure control and/or well killing, and uses of a gate valve | — | 2016-01-26 |
| 7938190 | Anchored riserless mud return systems | Emil R. Talamo, Lyle David Finn | 2011-05-10 |
| 7913764 | Return line mounted pump for riserless mud return system | David E. Smith, Harald Hufthammer, Roger Sverre Stave | 2011-03-29 |