Johansen; John A.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Johansen; John A..The latest application filed is for "method of operating a subsea production system, a subsea tree and an electric downhole safety valve".
- Johansen; John A. - Kongsberg NO
- Johansen, John A - Kongsberg NO
- Johansen; John A. - Houston TX
| Patent | Date |
|---|---|
| Method of Operating a Subsea Production System, a Subsea Tree and an Electric Downhole Safety Valve App 20220275703 - Moe; Sigurd ; et al. | 2022-09-01 |
| Trigger joint Grant 8,875,794 - Carlsen , et al. November 4, 2 | 2014-11-04 |
| Control system for a subsea installation Grant 8,806,092 - Johansen , et al. August 12, 2 | 2014-08-12 |
| Control system Grant 8,322,427 - Inderberg , et al. December 4, 2 | 2012-12-04 |
| Trigger Joint App 20120031622 - Carlsen; Hans-Paul ; et al. | 2012-02-09 |
| Anti-surge Actuator App 20090127485 - Wessel; Jorgen ; et al. | 2009-05-21 |
| Control System App 20080296025 - Inderberg; Olav ; et al. | 2008-12-04 |
| Modular Actuator for Subsea Valves and Equipment, and Methods of Using Same App 20080264646 - Sten-Halvorsen; Vidar ; et al. | 2008-10-30 |
| Electric-hydraulic power unit Grant 7,398,830 - Johansen , et al. July 15, 2 | 2008-07-15 |
| Electric-hydraulic Power Unit App 20080006411 - Johansen; John A. ; et al. | 2008-01-10 |
| Electric-hydraulic power unit Grant 7,287,595 - Johansen , et al. October 30, 2 | 2007-10-30 |
| Monitoring of a reservoir Grant 7,273,105 - Johansen , et al. September 25, 2 | 2007-09-25 |
| Subsea control system App 20070173957 - Johansen; John A. ; et al. | 2007-07-26 |
| System for controlling a hydraulic actuator, and methods of using same Grant 7,159,662 - Johansen , et al. January 9, 2 | 2007-01-09 |
| Electric-hydraulic Power Unit App 20060283600 - Johansen; John A. ; et al. | 2006-12-21 |
| Electric-hydraulic power unit Grant 7,137,450 - Johansen , et al. November 21, 2 | 2006-11-21 |
| Power generation system Grant 6,998,724 - Johansen , et al. February 14, 2 | 2006-02-14 |
| Electric-hydraulic power unit App 20050178557 - Johansen, John A. ; et al. | 2005-08-18 |
| System for controlling a hydraulic actuator, and methods of using same App 20050178560 - Johansen, John A. ; et al. | 2005-08-18 |
| Power generation system App 20050179263 - Johansen, John A. ; et al. | 2005-08-18 |
| Monitoring of a reservoir App 20050061513 - Johansen, John A ; et al. | 2005-03-24 |
| Downhole subsurface safety valve device Grant 6,719,057 - Johansen April 13, 2 | 2004-04-13 |
| Electric actuator Grant 6,595,487 - Johansen , et al. July 22, 2 | 2003-07-22 |
| Downhole subsurface safety valve device App 20020084075 - Johansen, John A. | 2002-07-04 |
| Shearing arrangement for subsea umbilicals Grant 6,397,948 - Williams , et al. June 4, 2 | 2002-06-04 |
| Electric actuator App 20020011580 - Johansen, John A. ; et al. | 2002-01-31 |
| Undersea hydraulic connector with equalization channel Grant 5,771,927 - Johansen , et al. June 30, 1 | 1998-06-30 |
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